• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
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    • 专利摘要:
    The invention relates to a data transmission system comprising measuring means (15) with a memory (16) for generating measurement data (19), a print device (14, 14 ') for displaying machine-readable stamp (12) containing measurement data formed by said measuring means, power supply (17) for output device and measuring means, server arrangement (11) for processing and / or storing the measurement data, one or more reader devices (13.1, 13.2) for reading the label from the output device and adapted to the data transmission with the server arrangement, and which output device and the measuring means and the memory are adaptable to the control item (20.1, 20.2) which can be adapted to the system by one or several. The power supply for the output device and the measuring devices is self-powered, the output device and the measuring devices with memories are low-current.
    公开号:FI20175981A1
    申请号:FI20175981
    申请日:2017-11-03
    公开日:2019-05-04
    发明作者:Janne Juhala；Antti Ruokolainen
    申请人:Logmore Oy；
    IPC主号:
    专利说明:

    COMMUNICATION SYSTEM
    The invention relates to a communication system comprising measuring means provided with a memory for generating measuring data,
    - an output device for displaying a machine-readable stamp containing the measurement data formed by said measuring means,
    - power supply for output device and measuring instruments,
    - a server arrangement for processing and / or storing measurement data,
    - one or more reader devices for reading the stamp from the output device and adapted for communicating with the server management, and the output device and the measuring means, with their memories, being adaptable to the monitoring object, which can be adapted to the system.
    International Patent Application Publication No. WO 2013/046231 AI is a monitoring solution utilizing a known dynamic QR code, more generally labeled. It also updates the QR code to reflect the state of the object being monitored. In other words, item status information can be included in the QR code contained in the server URL. The QR code can be read using, for example, the camera of the mobile device and the QR code application in a manner known per se. On the basis of the reading, a service request is sent to the server identified by the QR code and the same service request also transmits the object status information, measurement data, included in the QR code.
    In addition, another solution of the above type is known from U.S. Patent Application Publication No. 2017/0270249 A1. It is well known in medical devices for utilization
    20175981 prh 03 -11- 2017 Using dynamic QR code to transport information embedded in a URL.
    However, problems with the above solutions include their high power consumption and thus poor applicability to objects that lack continuous external power supply. In addition, the encryption and authentication of these solutions leaves much to be desired for the reliability of the implementations. Also, the amount of data that comes with the QR code is limited and often insufficient.
    It is an object of the present invention to provide a communication system which enables efficient communication also of objects lacking external continuous power supply, such as mains power. The characteristic features of the system according to the invention are set forth in the appended claim 1.
    In the invention, the power supply of the measuring means and the output device which can be arranged to the target is self-powered and, in addition, the output device and the measuring means and their memories are low-current. In this way, a highly energy efficient and cost effective lifetime control system can be implemented.
    According to one embodiment, bidirectional communication between the metering apparatus and the server system can also be used in the invention. With bidirectional communication, the reader can automatically read measurement data from a measurement object that does not fit into a single visual code. Preferably, the reader device is able to request the next code as soon as it has received the previous code read and possibly sent to the server system. This also makes it easy to read large amounts of data. In addition, bidirectional communication also enables the measurement system and / or output device to be awakened and also the clock of the measurement system by the server system.
    According to one embodiment, the invention also enables low-current encryption to be implemented, preferably. One possible way to implement low-power encryption is to use random number one-time encryption and XOR encryption. These provide a simple way to implement energy efficient encryption algorithms that require a relatively small amount of memory without the need for higher processing power encryption algorithms.
    The invention enables an energy efficient and secure communication system for generating, transmitting and processing target information. A low-current output device, a measuring means processor and a memory, also of a capacity adapted to provide the life of the measuring equipment and / or control object, combined with efficient but simple possible encryption, provide said data communication system advantages and improvements over known systems. Other features of the invention will be apparent from the appended claims and further advantages that are achieved are listed in the specification.
    In the following, the invention, which is not limited to the embodiments set forth below, will be further described with reference to the accompanying drawings, in which a simplified principle view is provided of an example of a communication system,
    Figure 1
    Figure 2 4schematically illustrates in block diagram form an example of a measuring apparatus at a control object, Figure 3 give a principled example of a display device and its stamp, Picture 4 illustrates a system according to the inventionstep-by-step flow chart, Figure 5 presents a sequence diagram for the systembetween different parts, Figure 6 provides an example of an encryption method used in the invention for encryption and decryption; and Figures 7a-7c illustrate another embodiment related to the implementation of the output device.
    Figure 1 is a simplified principle view of an example of a communication system. Basically,
    it includes server arrangement 11, one or more reader devices 13.1, 13.2 and to supervised entity 20.1, 20.2
    an adapted measuring apparatus 30. This measuring apparatus 30 includes in parts an output device 14, a measuring means 15 provided with a memory 16 and a power supply 17 (Figure 2). Output device 14 and
    measuring instruments 15 with memories 16, more generally, hardware 30, adaptable to control item 20.1, 20.2 which are adaptable to the system by one or more
    pia. Control sites may be permanent or
    moving. One a single example of standing still
    there is a building where the object is measured, for example
    moisture. One single example of moving surveillance
    The property has a freezer transportation. It can, for example, measure the temperature of transport or even of individual product packages within the cold chain.
    Figure 1 illustrates in more detail than the measuring apparatus 30 only the output device 14. The output device 14 is for displaying a machine-readable stamp 12 containing the measuring data 19 formed by the measuring means 15 and thereby providing the reading data 19 to the reader device 13.1, 13.2. Instead of a stamp, it is also possible to speak of a machine-readable identifier. The output device 14 is a readable device, a display capable of displaying, for example, a readable stamp 12, preferably a visible optical code 24 such as a QR code 24. The output device 14 may be substantially continuously visible on the output device 14 or may be rendered visible at a selected excitation.
    The excitation may be by pressing a button on the output device 14 or a signal detected by the output device 14 and recognizable as an excitation, such as a light or sound signal. The excitation can be given, for example, by a reader device 13.1, 13.2. The excitation can be generated, for example, by a server arrangement 11. The excitation can then be transmitted to the output device 14, for example, via a reader device 13.1, 13.2. More generally, remote control of the output device 14 and / or the measuring means 15 can also be talked about through a server arrangement 11 via a reader device 13.1, 13.2. As some examples of output devices 14, there may be mentioned an e-Ink or e-Paper display or a single output device 14 '(Figs. 7a-7c) or a pulse display. Thus, the output device 14, 14 'can be dynamic or also static.
    The system includes one or more reader devices 13.1, 13.2 for reading a stamp 12 containing measurement data 19 from the output device 14 and adapted for communication with the server system 11. The reader device may be, for example, a human-operated reader device 13.1, such as a camera-portable mobile device, a smartphone or also, for example, AR or VR (Augmented Reality / Virtual Reality) glasses. The reader device 13.1 has functions 28 for reading optical code 24 (e.g., a camera harnessed as a reader of QR code 24) and / or is capable of providing an excitation to the output device 14. Function 28 can decode the visual QR code into data.
    The reader device 13.2 may also be automatic. It is possible to do this with a camera connected to the communication network, and thus equipped with communication means, which reads the optical code 24 which acts as a stamp 12 and / or can generate an excitation for the output device 14, like a mobile communication device.
    The server arrangement 11 included in the system is for processing and / or storing the measurement data 19 obtained from the measuring means 15 by reading the stamp 12. The server arrangement 11 may form a cloud system or service comprising at least one server computer. The reader device 13.1, 13.2 transmits the measurement data 19 from the measuring apparatus 30 to the server arrangement 11 along with a tag 12 which stores and processes the measurement data 19 and, if necessary, forwards it. The reader device 13.1, 13.2 and the server arrangement 11 may communicate with one another through, for example, a wireless communication network, such as a mobile communication network.
    Figure 2 is a simplified schematic view of an example of the functions included in control item 20.1. The functions may be understood herein as the generic name measuring apparatus 30. The measuring apparatus 30 includes an output device 14, or display. It is formed with a data transfer code stamp 12, or optical QR code 24, which is then displayed visually on the output device 14. The display may be, for example, an LCD display or a display that does not require electricity to hold a pattern drawn on the display. An example of such a display technology is an e-Ink or e-Paper display. The display technology can also serve as a one-time display that only draws a pattern once. Of course, drawing can be done in one or more batches, for example, on different areas of the screen. Figures 7a-7c explain this embodiment in a little more detail.
    The measuring apparatus 30 includes, in addition to the output device 14, also a measuring means 15 provided with a memory 16 for generating the measurement data 19, and more specifically for a stamp 12, now QR code 24, to be generated on the output device 14. Measuring means 15 may include one or more generation means 18 for generating measurement data 19 and processing means 21 for processing measurement data 19 formed by generating means 18 for output device 14 (generating QR code 24) and also possibly encrypting measurement data 19 (before generating QR code 24). Parts 18 and 21 with their memories 16 may also be referred to as a data logger or data logger.
    The generating means 18 may be any device that produces data, such as one or more sensors 18.1, which produce measurement data such as temperature, pressure or humidity, etc. The generating means 18 may also be an external data source 18.2 such as a connection to another device, e.g. to a separate measuring device. The generating means 18 may also be, for example, a data converter 18.3. For example, it may listen to an external data source and convert the data to a compatible processor means 21. A mathematical algorithm may also be understood as a generation means. It can generate more refined measurement data from raw data produced by sensor data already in connection with the measuring means 15.
    The processor means 21 for processing the measurement data 19 generated by the generation means 18 for the output device 14 and also for possibly encrypting the measurement data 19 includes at least one processor 21 '.
    forming means 18, encryption and optical
    It takes care of reading the data 19 and storing it, possibly generating a tag 12, an identifier code, used for data transmission, based on the measurement data 19, preferably encrypted, to be transmitted. For example, the processor 21 may be on a processor card 22 and may include a memory 16 for processing. A memory 16 for storing measurement data 19 and a stamp 12 formed therefrom may be a separate memory or embedded within the processor circuit. The output device 14 and the measuring means 15 with memories 16 are low current. One exemplary processor circuitry from such a low-power measuring device 15 processor 21 is the Texas Instruments MSP430 series.
    The low power memory 16 included in the measuring means 15 may, for example, be non-volatile memory according to one embodiment. An example of this is, for example, the Ferroelectric Random Access Memory (FRAM) type. By non-volatile is meant here that memory does not need to be continuously refreshed to store information in memory 16, which contributes to its low power. Other known FRAM-type memories are commonly referred to as F-RAM or FeRAM, depending on their provider. The memory may also be just some memory under development with a known FRAM-type memory that follows the same principle. These are characterized by the fact that the contents of the memory can be changed with relatively low power compared to, for example, FLASH memory, which also contributes to low memory power. Resistive RAM type memory (RRAM or ReRAM) may be another example of suitable low-power memory instead of FRAM memory type. Alternatively, non-volatile memory may be used, which consumes only a small amount of power, for example for storage and / or memory maintenance, but is still adapted to withstand a reasonable period of use, such as 0.5 to 3 years.
    The processor means may be provided with a power saving feature. According to one embodiment, it may have, for example, Power Saving Modes (LPM), which can interrupt the processor when it is not needed. In this case it consumes very little, if any, power. For FRAM-type memory, the operating voltage is adapted to be, for example, 0.5 to 4 volts, more particularly 1-2 volts, but still well below 10 volts, which is a typical voltage requirement for, for example, FLASH memory.
    The measuring apparatus 30 may also include a display controller 23 which controls the display based on information received from the processor 21 '. The graphics card 23 may also be embedded in the processor circuit.
    The measuring apparatus 30 also includes a power supply 17 for the output device 14 and the measuring means 15. From the power source 17, the devices and instruments included in the metering apparatus 30 receive their supply electricity when required. The power source 17 may be, for example, a battery 17.1, an energy harvester 17.2 capable of generating energy from, for example, electromagnetic waves, vibration, light or heat.
    Preferably, however, the power supply for the output device 14 and the measuring means is a local, self-powered power supply.
    In this case, the monitoring object 20.1, 20.2 may be operating for most of its time 10 without a fixed mains supply. The power supply 17 may be dimensioned, for example, so as to withstand the duration of the measurement or the life of the measuring apparatus 30, such as 0.5 to 3 years. One of the criteria for the duration of the measurement or the life of the measuring apparatus 30 may also be the filling time of the memory 16.
    Figure 3 illustrates in principle an output device 14 and a stamp 12 thereon. The output device 14 represents a dynamic visual graphic element 12, such as QR code 24. The QR code 24 may be displayed at all times or may be displayed only when required or upon request. In addition, the output device 14 can display, for example, a current measurement value 25, which may be updated from time to time. The data 25 and the measurement data 19 may be, for example, temperature, humidity, acceleration, carbon dioxide, any electrical quantity or any other quantity to be measured, or a minimum, maximum, average or other historical value or result of a measured quantity.
    The output device 14 may further display, for example, a warning sign 26 therein, the expression of which may be programmed into the measuring apparatus 30. The warning sign may be displayed, for example, if the temperature or sum of the temperature overruns exceeds a specified threshold.
    According to one embodiment, the sensing means 27 is arranged in connection with the measuring means 15, adapted to detect a request transmitted by the reading device 13 to retrieve the measuring data 19 from the measuring means 15. To this end, the body 14 of the output device 14 may have an aperture behind the sensor 27 required to awaken the output device 14. the magnetometer, where it can be deeper, enables the reader device 13.1, such as a smart phone, to communicate, now more specifically to control the output device 14 and thus also the measuring means 15. This enables the telephone to for example notify the output device 14 of the need to update code 24 or the embodiment will return to the description in a slightly more natural paragraph below.
    Figure 4 illustrates a flow diagram of the operation of a system according to the invention when it is desired to send measurement data 19 from a monitoring object 20.1 to a server arrangement 11. As a step
    401 examines whether the visual visible code 24 provided by the output device 14 is readable by the reader device 13.1. If it is unreadable, for example, it is not visible, then its wake-up steps 402 to 405 are performed.
    402 examines whether an automatic excitation is possible. If possible, in step 404 the reader device 13.1 sends an excitation to the output device 14, resulting in step 405 to display a readable code 24. If the automatic excitation is not possible in step 402, then in step 403 the human is triggered by pressing the button on the output device 14. Again, as a result, in step 405, the output device 14 displays the code.
    If the code was readable at step 401, and also as a result of the excitation procedure, the read device 13.1 reads the code 24 as step 406. If the server system 11, after receiving the read code 13 from the read device 13.1, determines in step 407 that additional data is required from the measuring means 15. .
    In step 408, the data is transmitted by the reader device 13.1 to the server system 11. In step 409, the server system 11 and / or the reader device 13.1 can examine the read and / or transmitted information for additional data, e.g. If necessary, return to step 401 again.
    Figure 5, in turn, shows a sequence diagram between the different parts of the system in parallel timelines. Figure 5 illustrates the steps for performing a single status update procedure. As step 501, it is determined that the output device 14 has an optical reader code 13.1 that can be read by the camera at all times. Thus, the reader device 13.1 can read the code 24 at any time without the need to wake / inform the output device 14 in advance.
    In step 502, the reader device 13.1, such as a mobile communication device, successfully reads an optical code 24, such as a QR code, displayed on the output device 14 and the data is transferred to the reader device 13.1. The read information in the optical code 24 may be, for example, a web address or other data. In the case of a web link, the measurement data 19 sent to the monitoring system 20.1 to be sent to the server system 11 is embedded in the web link contained in the QR code 24, as shown in Figure 3. In the case where the data contained in the QR code 24 does not have a known web link, the reader device 13.1 may have a code that processes and transmits the data in the set manner.
    In step 503, the reader device 13.1 transmits the data to the server system 11 via a communication network, such as a mobile communication network. In step 504, the server system 11 receives and processes the data transmitted to it by the reader device 13.1. If the data is encrypted, the server system 11 decrypts the data. If the data is compressed, the server system 11 will decompress the data. The data read and transmitted by the reader device 13.1 is then stored in the server system 11.
    According to one embodiment, the communication between the server system 11 and the measuring means 15 is arranged to be bidirectional. There are several benefits to this. In this case, the measuring system 15 can be controlled by the server system 11 via the reader device 13.1. First, the data transmitted to the server system 11 may, for example, include, as a header, information that the monitoring object 20.1, i.e. the output device 14, has more data available than could already be transmitted in one of the QR codes 24 above. Thus, the server system 11 may decide that there is a need for more data from the output device 14. Thus, the server system 11 is adapted to identify the need for retrieving the measurement data 19 from the measuring means 15, for example from the previous transmission according to the label 12 of the reader device 13.1, 13.2.
    If the server arrangement 1 determines that all necessary data has already been stored in the server system 11, no further data is required. Instead, if it is found that data is / is needed, then server system 11 may send information to read device 13.1 to read more data as a transmission request response in process 505. Then, reader device 13.1 is configured to transmit request from measuring system 15 to measuring means 15 to retrieve measurement data 19. 15 is adapted to be formed and transmitted in response to a tag 12 already read by the reader device 13.1, 13.2 and a transmission, i.e. a contact, made on the basis thereof.
    In step 506, the reader device 13.1 receives a request generated and transmitted by the server system 11 to retrieve and read more data from the output device 14, more generally, from the control object 20.1. The reader device 13.1 receives the request and generates on its basis a signal command according to the set to be transmitted to the output device 14. If there is no need for additional data, the server system 11 merely acknowledges the completion of the communication procedure.
    As a step 507, the reader device 13.1 transmits an instruction, such as a light signal, an acoustic signal, or instructs the user of the reader device 13.1 to press a button set on the reader / output device 13.1, 14 to generate and present the instruction to the output device 14.
    In step 508, the output device 14 updates its optical code 24 with the next batch of information. After the code 24 has been updated in step 509, it returns to step 501 where the code 24 containing the next batch of data can be read from the output device 14 by the reader device 13.1. Steps 502 to 504 are repeated as above. This process can be continued as long as desired / necessary.
    According to one embodiment, data and / or data processed and possibly processed therefrom as a step 510 to server system 11 as a result of reading QR code 24 may, if necessary, be transmitted to step 511 to the reader device 13.1 and displayed directly to user 29 on the screen of reader device 13.1.
    Figure 6 shows an example of the optionally used in the invention, a low power and thus energiatehokkaas of the encryption method of an image, the left side of the block 61 of data 63 to encrypt the encryption key 62, and then discharging the right-side block 65, the encryption server encryption key 66. Thus, the measurement means 15 is according to one embodiment also adapted to encrypt the data by 19 which is transmitted from the measuring apparatus 30 to the server system 11 as a result of reading QR code 24, i.e. based on it.
    Block 61 is performed in conjunction with the measuring means 15. The encryption key 62 may be the entire length of the memory 16 of the measuring means 15 and, for example, a disposable random number string. The size of the memory 16 can be, for example, 200 MB or even 1 GB, whereby the encryption key 62 is also of the same length. The data 63 to be encrypted may be data stored in the memory 16 of the measuring means 15, which may be for example temperature measurements. The encrypted data 63 and the encryption key 62 are here combined with an XOR operation to obtain the encrypted measurement data 64. The encrypted measurement data 64 is also stored in the memory 16 of the measurement means 15. The encrypted measurement data 64 may replace the memory locations of the encryption key In other words, the encryption is then overwritten on the disposable encryption keys as the encryption key characters are used.
    In this way, memory 16 can be utilized very efficiently.
    At the same time, the encryption keys 62 are destroyed by encryption and the encrypted measurement data can no longer be opened, even if the memory 16 of the measuring means could be read.
    The encryption keys 62, 66 may be random numbers which are also stored in the server system 11. The encryption keys 62 are stored in their memory 16 during the manufacturing of the measuring means 15. Each measuring means 15 is thus an individual having a unique random number string as an encryption key. The server arrangement 11 has information on the individual measuring means 15 and the encryption keys 66. Each of them contains the encrypted measuring data 63, but after encryption it can no longer be opened by an outsider without the encryption key 62 on which the encrypted measuring data is preferably stored. However, if the data transfer to the server arrangement 11 is for some reason unsuccessful, the measurement data is in the memory 16 of the measuring means 15 and cannot be read until the encrypted measuring data 63 has been transmitted to the server arrangement 11 based on QR code 24.
    Block 65 illustrates decryption of data with encryption key 66. Thus, this is done by server arrangement 11. Encryption key 66 of each measuring means 15 may be stored in server arrangement 11, whereby the encrypted data 67 transmitted to server arrangement 11 can be decrypted to original measurement data 68. . In other words, data from a particular measuring device 15 must come from a specific reading range defined by an encryption key provided on that measuring device 15. The encoded measurement data may also include character bits to perform authentication. For example, if the encrypted measurement data is 8 bits, then 7 bits of it may be encrypted measurement data and 1 bit is a character bit taken, for example, from the corresponding encryption key location. Since the server knows what the character bit at that point must be, it is also possible to verify the origin of the encrypted measurement data, i.e. it is from the correct measurement device 15. Thus, the monitoring object 31 can also be configured for authentication based on encryption.
    XOR encryption does not require complicated computing or encryption algorithms.
    It is implemented with a lightweight processor implementation and is also lightweight with respect to its data processing requirements. Yet another advantage is that there is no need to encrypt the encryption algorithm itself because it does not exist. Leaking encryption key or metering data from one metering unit to outsiders does not help to open metering data from other metering units.
    Figures 7a-7c show an example of yet another embodiment in connection with a possible implementation of the output device 14 '. In this embodiment, refrigerated transmission 30 is provided as an exemplary embodiment. According to one embodiment, the output device 14 'may also be disposable. In this case, a plain-language document can be printed on the recipient of the consignment 30, indicating, for example, information related to the consignment 30, such as its route, temperature history and / or verifying the consignment as the correct product. Here, the output device 14 'is adapted to be a paper-like or similar disposable medium having, for example, physical (e.g., matrix or heat), chemical and / or electrical effect information on measuring data generated and / or processed by the measuring means 15. is preferably removable from the control object 20.1, for example, at the end of the control. Here, too, the QR code 24 can first be read by a mobile phone and transmitted to a server system 11 which verifies the accuracy of the information to the recipient of the transmission 31.
    In Figure 7a, the package 31 is transportable and during this time the output device 14 'is inactive, i.e., empty of the information to be displayed. However, measurements of the package 30 and its environment (temperature) are continuously made during transport, stored in memory 16 by the measuring means 15 arranged in connection with the package 30.
    In Figure 7b, packaging 30 has arrived at its destination. The recipient, for example, by flash of his mobile device may wake up the output device 14 'via, for example, a photosensitive sensor 27 integrated therein. As a result of the wake-up, the output device 14 'displays a QR code 24 readable by the mobile communication device, more generally a stamp 12, and, for example, the current temperature value. As described above, the recipient may verify the historical information contained in QR code 24 with respect to compression 30 by reading QR code 24 on its mobile device, which then transmits measurement data 19 included in QR code 24, e.g., encrypted to a web address defined by QR code 24. The server arrangement 11 decodes the measurement data 19 contained in the QR code 24 into plain language and then returns it to the mobile device, verifying the information displayed on the same output device 14 'and the originality of the compression 31 in general.
    As shown in Figure 7c, the output device 14 'is also removable from the package 30. The recipient then obtains it, for example, for his own archiving needs. Here, the output device 14 'is disposable, whereby it is very inexpensive and thus also suitable for bulk products.
    For example, the disposable output device 14 'may be drawn one or more times for its QR code 24, i.e. it may be advantageously printed in one or more batches. Hereby, a portion of QR code 24 may first be plotted on the device 14 'and other areas of the area allocated to QR code 24 of the device 14' will remain blank. The QR code 24 can later be added to data, that is, it can be completed for empty areas. In this way, the various parts of the visual code 24 can be supplemented while utilizing the error correction algorithms of the QR code. The reader device 13.1, 13.2 may also take this into account when reading the codes 24, which are updated and also supplemented as described above.
    According to one embodiment of the invention, the data transmission can take place mainly automatically and securely by reading only the visual code 24 and then opening the embedded URL link thereto. This makes the system easy to use for user 29. In this case, the authentication can also take place automatically so that the information needed for the identification is already associated with the visual code 24.
    Bidirectional communication also enables the control of the server system 11 to trigger the measurement means 15 / output device 14 to update code 24. This allows the data associated with the timestamp to be accurately mapped without the measuring equipment 30 having its own clock in the proper time. This also saves energy.
    The two-way communication according to the invention also allows the settings of the measuring means 15 and / or the output device 14 and other values in the memory 16 to be changed under the control of the server system 11.
    In addition to the communication system, the invention also relates to the use of the communication system described above for monitoring the control object 20.1, 20.2. The target may be fixed or mobile. One very typical moving control object is logistics related items, articles to be transported. The quantity to be monitored can be any quantity calculated from it, such as temperature, humidity, pressure, lighting, location, VOC, radon, pH, etc. More specifically, the controlled variable may be one where changes can occur. One example of this is, for example, refrigerated transport.
    It is to be understood that the foregoing description and the accompanying drawings are intended only to illustrate the present invention. Thus, the invention is not limited to the embodiments set forth above or as defined in the claims, but many variations and modifications of the invention which are possible within the scope of the inventive concept defined in the appended claims will be apparent to those skilled in the art.
    权利要求:
    Claims (15)
    [1]
    1. A communication system comprising:
    - measuring means (15) provided with a memory (16) for generating measuring data (19),
    an output device (14, 14 ') for displaying, for sounding and / or recording, a machine-readable stamp (12) containing measurement data (19) formed by said measuring means (15), and one or more reader devices (12) for reading from the output device (14, 14) and) which are adapted to be transmitted by the output device with its memories (16) to the server arrangement adaptable to a hash object (20.1, 20.2) which can be adapted to the system one or more, characterized in that:
    the power supply (17) for the output device (14, 14 ') and the measuring means (15) is self-powered, the output device (14, 14') and the measuring means (15) with memories (16) are low current.
    [2]
    System according to Claim 1, characterized in that the communication between the server system (11) and the measuring means (15) is arranged to be bidirectional.
    [3]
    System according to Claim 2, characterized in that the server system (11) is arranged to control the measuring means (15) via a reader device (13.1, 13.2).
    [4]
    System according to Claim 3, characterized in that the reader device (13.1, 13.2) is arranged to transmit from the server system (11) to the measuring means (15) at least one of the following:
    - a request to retrieve the measurement data (19) from the measuring means (15),
    - measuring means (15) and / or output device (14),
    14 ') excitation,
    - clock synchronization of the measuring means (15).
    [5]
    System according to Claim 3 or 4, characterized in that sensor means (27) are arranged in connection with the measuring means (15), for detecting the control of the measuring means (15) via a server-arranged (11) reader device (13.1).
    [6]
    System according to Claim 4 or 5, characterized in that the request for retrieving the measurement data (19) from the measuring means (15) is adapted to be generated and transmitted in response to a reading (12) read by the reader device (13.1, 13.2).
    [7]
    System according to one of Claims 4 to 6, characterized in that the server system (11) is adapted to identify the need for retrieving the measurement data (19) from the measuring means (15) based on the stamp (12) read by the reading device (13.1, 13.2).
    [8]
    System according to one of Claims 1 to 7, characterized in that the measuring means (15) include
    - one or more forming means (18) for generating measurement data (19), processor means (21) for processing measurement data (19) formed by forming means (18) for the output device (14, 14 ').
    [9]
    System according to one of Claims 1 to 8, characterized in that
    the output device (14, 14 ') is a dynamic e-Ink or ePaper display or a one-time output device that is preferably printable in one or more batches, the reader devices (13.1, 13.2) include one or more of: a mobile device, a camera device with communication media; , VR glasses.
    [10]
    System according to Claim 9, characterized in that the output device (14 ') is adapted to be a paper-like or similar one-time printing means, for example having a stamp (12) formed by and / or measuring means (15) with physical, chemical and / or electrical effect. the processed measurement data (19), the disposable means being preferably removable from the monitoring object (20.1), for example at the end of the monitoring.
    [11]
    System according to one of Claims 1 to 10, characterized in that the memory (16) of the measuring means (15) is arranged to comprise preferably non-volatile low-current FRAM-type memory.
    [12]
    System according to one of Claims 1 to 11, characterized in that the measuring means (15) are adapted to encrypt the measurement data (19) by a low-current encryption method, such as an XOR encryption method, using a disposable encryption key (62).
    [13]
    System according to claim 12, characterized in that the encrypted measurement data (63) is adapted to be stored in the memory location of the encryption key already used for encryption.
    5 (62).
    [14]
    System according to one of Claims 1 to 13, characterized in that the monitoring object (31) is adapted to be verified based on encryption.
    [15]
    Use of a communication system according to any one of claims 1 to 14 for monitoring a monitoring object (20.1, 20.2, 31).
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    同族专利:
    公开号 | 公开日
    EP3704866A1|2020-09-09|
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    JP2021502039A|2021-01-21|
    BR112020008788A2|2020-10-20|
    CA3081556A1|2019-05-09|
    CN111316663A|2020-06-19|
    WO2019086763A1|2019-05-09|
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