CN113298201A - Method for automatically adjusting structural parameters of rescue vehicle and rescue vehicle - Google Patents
Method for automatically adjusting structural parameters of rescue vehicle and rescue vehicle Download PDFInfo
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- CN113298201A CN113298201A CN202110405021.1A CN202110405021A CN113298201A CN 113298201 A CN113298201 A CN 113298201A CN 202110405021 A CN202110405021 A CN 202110405021A CN 113298201 A CN113298201 A CN 113298201A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
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Abstract
The invention discloses a method for automatically adjusting structural parameters of a rescue vehicle and the rescue vehicle, wherein the method for automatically adjusting the structural parameters of the rescue vehicle comprises the following steps: scanning each antenna in the rescue vehicle, and setting the antenna impedance of the RFID controller; scanning each medicine bottle on which an RFID label is attached in advance, and setting antenna gain of an RFID controller; and respectively adjusting the antenna impedance and the antenna gain of the RFID controller to obtain the structural parameters of the rescue vehicle. The rescue vehicle comprises a memory, a processor and an automatic parameter adjusting program which is stored in the memory and can run on the processor, and the processor realizes the steps of the automatic parameter adjusting method when executing the automatic parameter adjusting program. The method for automatically adjusting the structural parameters of the rescue vehicle and the rescue vehicle provided by the invention can save the process of adjusting the structural parameters and the manual disassembly and assembly processes during firmware upgrading, and improve the working efficiency.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a method for automatically adjusting structural parameters of a rescue vehicle and the rescue vehicle.
Background
The rescue vehicle is a system for realizing intelligent management of the management of medicines, articles and instruments in a ward based on application program management. The on-line emergency medicine instrument management system takes the guarantee of the safety of emergency medicines as a core, the emergency medicines are centralized to the emergency cart for management, the traditional management mode that the emergency cart only aims at storing is broken through, an on-line emergency medicine instrument management mode that an emergency center, a pharmacy, a department and the like participate together is formed, medicine taking, checking, medicine supplementing and shift switching in the emergency process are achieved electronically, and the purpose of integrating things and accounts is finally achieved.
The RFID controller is a whole module for automatically counting all medicine bottles in a drawer at the first layer of the rescue vehicle. The medicine box divide into 6 rows in the drawer, through step motor, drives 6 RFID scanners and makes a round trip to scan in the medicine box bottom to read the RFID label on the medicine bottle in the medicine box and realize checking. However, because different RFID controllers have differences in structure and assembly, and differences in antenna impedance and antenna gain of the RFID scanner itself, before each rescue vehicle is used, the structural parameters of the RFID controllers must be adjusted to achieve the purposes of no crosstalk of RFID signals and accurate identification. However, to adjust the structural parameters, specialized training is required to ensure the accuracy of the parameters. In the prior art, structural parameter adjustment is performed by research personnel or trained personnel, and before the emergency car leaves a factory, the structural parameter is configured in advance, and backup of a structural parameter file is well performed. However, once the configuration file and the backup thereof are deleted by mistake after leaving the factory, research and development personnel are required to go to the site for processing, and non-professional personnel cannot solve the problem. The method is complex and has low working efficiency.
Therefore, it is necessary to provide a method for automatically adjusting structural parameters of a rescue vehicle and a rescue vehicle for solving the above problems.
Disclosure of Invention
The technical problem to be solved by the invention is that once the rescue vehicle leaves the factory, when the configuration file and the backup thereof are deleted by mistake, research and development personnel are required to go to the site for processing, and non-professional personnel cannot solve the problem.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the invention provides a method for automatically adjusting structural parameters of a rescue vehicle, which comprises the following steps:
scanning each antenna in the rescue vehicle, and setting the antenna impedance of the RFID controller;
scanning each medicine bottle on which an RFID label is attached in advance, and setting antenna gain of an RFID controller;
and respectively adjusting the antenna impedance and the antenna gain of the RFID controller to obtain the structural parameters of the rescue vehicle.
In one implementation, the specific step of setting the antenna impedance of the RFID controller includes:
scanning to obtain a frequency point and a minimum impedance value of each antenna;
calculating the minimum value of the frequency points in each antenna;
and automatically setting the optimal working channel of each antenna according to the index corresponding to the minimum value of the frequency points to obtain the antenna impedance matched with the optimal working channel.
In one implementation manner, preferably, the step of setting the antenna gain of the FRID controller includes:
after scanning is finished, checking whether the structural parameters of the RFID controller are correct or not;
when each antenna checks out structural parameter errors, modifying an antenna gain threshold value to be adjusted and an input value of the rssi;
and scanning again until the scanning is finished finally and all the antennas are inquired to pass, so that the modified antenna gain is obtained.
In one implementation manner, the step of verifying whether the structural parameters of the RFID controller are correct includes:
and judging whether the structural parameters of the antenna are correct or not according to the range of the gain threshold value of the antenna and the number of errors of the RFID labels.
In one implementation, the step of setting the antenna gain of the FRID controller further includes:
and when the checking times exceed the set times and are still wrong, prompting the user that the FRID controller is not checked successfully.
In one implementation, the step of setting the antenna gain of the FRID controller further includes:
and when the error number of the RFID tags exceeds the set value of the actual number of the medicine bottles, prompting a user that the FRID controller is not successful in verification.
In one implementation, preferably, the method further includes:
starting a timing task, and inquiring whether the server has an updated firmware version;
when the updated firmware version meets the requirements at the same time, prompting a user to update;
and when the emergency treatment vehicle selects immediate update, the emergency treatment vehicle downloads and upgrades the firmware.
In one implementation manner, the step of prompting the user to update when the updated firmware version meets the requirement at the same time specifically includes:
judging whether the module of the new firmware version is suitable for the current hardware module, if so, executing the next step;
judging whether the version number of the new firmware is higher than the version number of the local firmware, if so, executing the next step;
judging whether the version of the firmware is compatible with other modules or not, if so, prompting a user to update;
in one implementation, the specific steps of downloading and upgrading the firmware by the rescue vehicle include:
sending the path of the firmware file to an interface of a system bottom layer;
copying the firmware file to a corresponding upgrading area of the system from the specified path;
and (5) verifying the firmware file, and replacing the firmware file after the firmware file is verified to be correct to finish silent upgrade.
In a second aspect, the present invention further provides a rescue vehicle, where the rescue vehicle includes a memory, a processor, and an automatic parameter adjustment program stored in the memory and operable on the processor, and when the processor executes the automatic parameter adjustment program, the steps of the automatic parameter adjustment method are implemented.
Has the advantages that: according to the method for automatically adjusting the structural parameters of the rescue vehicle, provided by the invention, the maximum identification accuracy of the RFID controller is achieved by setting the antenna impedance of the RFID controller and setting the antenna gain of the RFID controller, the risk of manual setting errors is avoided, and the problem of compatibility between firmware versions and different hardware versions in the upgrading process can be solved.
This summary is provided to introduce a selection of concepts and options in a simplified form that are further described below in the detailed description to assist the reader in understanding the disclosure. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter. All of the above features are to be understood as exemplary only and further features and objects, both as to structure and method, may be gleaned from the present disclosure. A more complete appreciation of the features, details, utilities, and advantages of the present invention will be provided in the following written description of various embodiments of the invention, illustrated in the accompanying drawings, and defined in the appended claims. Accordingly, many non-limiting interpretation of the disclosure should not be understood without further reading the entire specification, claims and drawings.
Drawings
FIG. 1 is a flow chart illustrating the steps of one embodiment of a method for automatically adjusting structural parameters of a rescue vehicle according to the present invention;
FIG. 2 is a flowchart showing the detailed steps of step S1 provided in FIG. 1;
FIG. 3 is a flowchart showing the detailed steps of step S2 provided in FIG. 1;
FIG. 4 is a graph of scan results for an embodiment of the present invention;
fig. 5 is a flow chart illustrating the steps of another embodiment of the method for automatically adjusting the structural parameters of the rescue vehicle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Please refer to fig. 1-5, wherein fig. 1 is a flowchart illustrating steps of a method for automatically adjusting structural parameters of a rescue vehicle according to an embodiment of the present invention, fig. 2 is a flowchart illustrating steps of step S1 shown in fig. 1, fig. 3 is a flowchart illustrating steps of step S2 shown in fig. 1, fig. 4 is a diagram illustrating scanning results of an embodiment of the present invention, and fig. 5 is a flowchart illustrating steps of another embodiment of a method for automatically adjusting structural parameters of a rescue vehicle shown in fig. 5.
The basic working principle of the RFID system is: the reader-writer sends a radio frequency signal with specific frequency through the transmitting antenna, and when the electronic tag enters an effective working area, induced current is generated, so that the obtained energy is activated, and the electronic tag transmits the self-encoding information through the built-in antenna; a receiving antenna of the reader-writer receives a modulation signal sent from the tag, the modulation signal is transmitted to a reader-writer signal processing module through a modulator of the antenna, and effective information is transmitted to a background host system for relevant processing after demodulation and decoding; the host system identifies the identity of the label according to the logical operation, performs corresponding processing and control aiming at different settings, and finally sends out a signal to control the reader-writer to complete different read-write operations.
The invention provides a method for automatically adjusting structural parameters of a rescue vehicle, which comprises the following steps:
s01, scanning each antenna in the rescue vehicle, and setting the antenna impedance of the RFID controller;
s02, scanning each medicine bottle pre-attached with an RFID label, and setting antenna gain of an RFID controller;
and S03, respectively adjusting the antenna impedance and the antenna gain of the RFID controller to obtain the structural parameters of the rescue vehicle.
Specifically, step S1 includes the following steps:
s11, scanning to obtain the frequency point and the minimum impedance value of each antenna;
s12, calculating the minimum value of the frequency points in each antenna;
and S13, automatically setting the optimal working channel of each antenna according to the index corresponding to the minimum value of the frequency points, and obtaining the antenna impedance matched with the optimal working channel.
The index corresponding to the minimum value of the frequency point represents the optimal working channel of the current antenna, so that the optimal working channel of each antenna can be automatically set according to the index corresponding to the minimum value of the frequency point, the identification accuracy of the PFID controller is maximized, and the risk of manual setting errors is avoided.
The step S2 includes the following steps:
and S21, after the scanning is finished, checking whether the structural parameters of the RFID controller are correct. Specifically, whether the structural parameters of the antenna are correct or not is judged according to the range of the gain threshold value of the antenna and the number of errors of the RFID tags.
And S22, when each antenna checks out the structural parameter error, modifying the antenna gain threshold value to be adjusted and the input value of the rssi.
And S23, scanning again until the scanning is finished and all the antennas are inquired, and obtaining the modified antenna gain.
And S24, when the checking times exceed the set times and are still wrong, prompting the user that the FRID controller is not successful in checking. Specifically, the set number of times is 10, which is not limited in the present invention.
And S25, when the number of the errors of the RFID tags exceeds the set value of the actual number of the medicine bottles, prompting the user that the FRID controller is not successful in verification. Specifically, in this embodiment, the set number of times is 10 times, and the set value is 25%.
Antenna gain is a measure of the ability of an antenna to transmit and receive signals in a particular direction, and is one of the important parameters for selecting a base station antenna. The higher the antenna gain, the better the directivity, the more concentrated the energy and the narrower the lobe. Specifically, referring to fig. 4, when each scan is finished, the application program checks whether the structural parameters of the rescue vehicle are correct by determining the range of the antenna gain threshold and the number of the error tags. Specifically, the antenna gain threshold is adjusted by dlf and drlf. Taking FIG. 4 as an example, the average value of dlf ranges from 60 to 64 (convergence value is 62). Taking the antenna 0 in the above diagram as an example, when scanning is finished, detecting that the average value of the id0 antenna dlf is 71, the difference value between the average value and the convergence value is +9, the gain of the antenna 0 needs to be increased, the span is 4, and the result that the current gain value is increased by 4 spans is inquired from the antenna gain threshold value table, but the antenna 0 gain 02021 does not exist in the antenna gain threshold value table and belongs to user input errors, so that the antenna 0 gain 02021 should be modified to the default value 020216; if the current gain value exists in the threshold table, a value that is 4 spans greater than it is looked up and filled into the antenna 0 gain input box. Since the drlf average value range is 50-54 (convergence value is 52), taking antenna 0 in the above figure as an example, when the scanning is finished, the drlf average value of the id0 antenna is detected to be 48, the difference value with the convergence value is-4, the rssi (received signal strength) corresponding to antenna 0 needs to be reduced, and the span is-2, so the value of the current rssi should be modified from 212 to 210. And the other antennas are also the same, after scanning is finished once, when the structural parameter error is checked, automatically modifying all the antenna gain threshold values needing to be adjusted and the input values of the rsi, then scanning again, and if the structural parameter error is still checked, continuing to modify and then scanning until the scanning is finished finally and the checking is passed. And when the checking times exceed the set times and are still wrong, prompting the user that the FRID controller is not checked successfully. The set number of times is 10 in this embodiment. Or dlf and drlf are in a normal range, but the error number of the RFID tags exceeds the set value of the actual number of the medicine bottles, the user is prompted that the FRID controller is not successful in verification. In this embodiment, if the setting value is 25%, the user is prompted that the RFID controller is not successfully verified, and at this time, an engineer needs to be contacted to check the hardware.
According to the method for automatically adjusting the structural parameters of the rescue vehicle, the antenna impedance of the RFID controller is set, the antenna gain of the RFID controller is set, the identification accuracy of the RFID controller is maximized, and the danger of manual setting errors is avoided.
In the existing method, structural parameters are adjusted by research personnel or trained personnel, and the structural parameter files are configured in advance and well backed up before the emergency car leaves a factory. However, once the configuration file and the backup thereof are deleted by mistake after leaving the factory, research and development personnel are required to go to the site for processing, and non-professional personnel cannot solve the problem. Meanwhile, regarding the upgrading of the firmware, before delivery, the firmware version corresponding to the hardware is selected before the finished rescue vehicle is assembled, the burn recorder is used for connecting the PCB for burn recording, all modules acquire the firmware version from the same large version, and because the version numbers are uniform, the problem of version incompatibility does not exist among different modules. After leaving the factory, when a certain module is upgraded independently, an implementer needs to judge the hardware version of the module and the current firmware version of other modules, then selects which firmware is used by the module needing to be upgraded, copies a new firmware to the rescue vehicle by using the USB flash disk, and loads a firmware file by using corresponding software for upgrading. Regarding the firmware upgrading of the RFID controller, the rescue vehicle comprises a plurality of main boards and two sets of new and old hardware, the firmware comprises a medicine management module, a signal module and a power supply module, and only a single module or a plurality of modules can be upgraded simultaneously during upgrading. Therefore, the compatibility problem of the firmware version between modules and the compatibility problem between the firmware version and different hardware versions must be considered in the upgrading process.
Therefore, referring to fig. 5, the method for automatically adjusting the structural parameters of the rescue vehicle provided by the present invention further includes the following specific steps:
s04, starting a timing task, and inquiring whether the server has an updated firmware version;
s05, when the updated firmware version meets the requirement at the same time, prompting the user to update;
and S06, when the emergency treatment vehicle selects to update immediately, downloading and upgrading the firmware by the emergency treatment vehicle. The step S4 includes the following steps:
further, in step S05, the updated firmware version needs to be determined as follows: judging whether the module of the new firmware version is suitable for the current hardware module, if so, executing the next step; judging whether the version number of the new firmware is higher than the version number of the local firmware, if so, executing the next step; and judging whether the version of the firmware is compatible with other modules or not, and prompting a user to update if the version of the firmware is compatible with other modules. Only when the three conditions are met, whether the user needs to update is prompted, and manual judgment is not needed in the whole process. In addition, if the current rescue vehicle is in use, the user can select 'say again later', the prompt box is closed, and the system reminds the user again after ten minutes to judge whether to upgrade. If the user selects 'update immediately', after closing the prompt box, the application program automatically downloads the new version firmware in the background, and after the firmware is downloaded, the upgrade is executed.
In step S06, the specific steps of downloading and upgrading the firmware by the rescue vehicle include:
sending the path of the firmware file to an interface of a system bottom layer;
copying the firmware file to a corresponding upgrading area of the system from the specified path;
and (5) verifying the firmware file, and replacing the firmware file after the firmware file is verified to be correct to finish silent upgrade.
The downloading and upgrading processes of the silent upgrading method of the rescue vehicle provided by the invention are automatically carried out at the background, so that user intervention is not required, and the workload of a user is reduced.
Further, the invention also provides a rescue vehicle. The rescue vehicle comprises a memory, a processor and an automatic parameter adjusting program which is stored in the memory and can run on the processor, and the steps of the automatic parameter adjusting method provided by the invention are realized when the processor executes the automatic parameter adjusting program. In addition, the rescue vehicle comprises a vehicle body and a medical cabinet arranged on the vehicle body, the medical cabinet comprises a cabinet body and a cabinet cover, the upper portion of the cabinet body is a space for placing medicines, a push-pull cover plate for sealing the space is arranged on the cabinet body, an oxygen cylinder sleeve for fixing an oxygen cylinder is arranged on the vehicle body, an infusion support is arranged at one end of the vehicle body, the infusion support and the oxygen cylinder sleeve are simultaneously arranged on the rescue vehicle, a plurality of drawers for placing objects are arranged, the cabinet can contain a plurality of objects, the use is convenient, the push-pull cover plate can be used as a cover plate on the one hand, the push-pull cover plate can be used as an operation table on the other hand, and the operation area is increased.
In conclusion, the method for automatically adjusting the structural parameters of the rescue vehicle provided by the invention has the advantages that the maximum identification accuracy of the RFID controller is achieved by setting the antenna impedance of the RFID controller and setting the antenna gain of the RFID controller, the risk of manual setting errors is avoided, and the problem of compatibility between firmware versions and different hardware versions in the upgrading process can be solved.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. A method for automatically adjusting structural parameters of a rescue vehicle is characterized by comprising the following steps:
scanning each antenna in the rescue vehicle, and setting the antenna impedance of the RFID controller;
scanning each medicine bottle on which an RFID label is attached in advance, and setting antenna gain of an RFID controller;
and respectively adjusting the antenna impedance and the antenna gain of the RFID controller to obtain the structural parameters of the rescue vehicle.
2. The method for automatically adjusting the structural parameters of the rescue vehicle according to claim 1, wherein the specific step of setting the antenna impedance of the RFID controller comprises:
scanning to obtain a frequency point and a minimum impedance value of each antenna;
calculating the minimum value of the frequency points in each antenna;
and automatically setting the optimal working channel of each antenna according to the index corresponding to the minimum value of the frequency points to obtain the antenna impedance matched with the optimal working channel.
3. The method of claim 1, wherein the step of setting the FRID controller antenna gain comprises:
after scanning is finished, checking whether the structural parameters of the RFID controller are correct or not;
when each antenna checks out structural parameter errors, modifying an antenna gain threshold value to be adjusted and an input value of the rssi;
and scanning again until the scanning is finished finally and all the antennas are inquired to pass, so that the modified antenna gain is obtained.
4. The method for automatically adjusting the structural parameters of the rescue vehicle as set forth in claim 3, wherein the step of verifying whether the structural parameters of the RFID controller are correct comprises:
and judging whether the structural parameters of the antenna are correct or not according to the range of the gain threshold value of the antenna and the number of errors of the RFID labels.
5. The method of automatically adjusting structural parameters of a rescue vehicle according to claim 3, wherein the specific step of setting the FRID controller antenna gain further comprises:
and when the checking times exceed the set times and are still wrong, prompting the user that the FRID controller is not checked successfully.
6. The method of automatically adjusting structural parameters of a rescue vehicle according to claim 3, wherein the specific step of setting the FRID controller antenna gain further comprises:
and when the error number of the RFID tags exceeds the set value of the actual number of the medicine bottles, prompting a user that the FRID controller is not successful in verification.
7. The method of automatically adjusting structural parameters of a rescue vehicle according to claim 1, further comprising:
starting a timing task, and inquiring whether the server has an updated firmware version;
when the updated firmware version meets the requirements at the same time, prompting a user to update;
and when the emergency treatment vehicle selects immediate update, the emergency treatment vehicle downloads and upgrades the firmware.
8. The method for automatically adjusting the structural parameters of the rescue vehicle as claimed in claim 7, wherein the step of prompting the user to update when the updated firmware version meets the requirement at the same time specifically comprises:
judging whether the module of the new firmware version is suitable for the current hardware module, if so, executing the next step;
judging whether the version number of the new firmware is higher than the version number of the local firmware, if so, executing the next step;
and judging whether the version of the firmware is compatible with other modules or not, and prompting a user to update if the version of the firmware is compatible with other modules.
9. The method for the rescue vehicle to automatically adjust the structural parameters according to claim 7, wherein the specific steps of downloading and upgrading the firmware by the rescue vehicle comprise:
sending the path of the firmware file to an interface of a system bottom layer;
copying the firmware file to a corresponding upgrading area of the system from the specified path;
and (5) verifying the firmware file, and replacing the firmware file after the firmware file is verified to be correct to finish silent upgrade.
10. A rescue vehicle comprising a memory, a processor and an autotuning parameter program stored in said memory and executable on said processor, said processor when executing said autotuning parameter program performing the steps of the autotuning parameter method according to any one of claims 1-9.
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| CN202110405021.1A CN113298201B (en) | 2021-04-15 | 2021-04-15 | Method for automatically adjusting structural parameters of rescue vehicle and rescue vehicle |
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| CN202110405021.1A CN113298201B (en) | 2021-04-15 | 2021-04-15 | Method for automatically adjusting structural parameters of rescue vehicle and rescue vehicle |
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| US20070091006A1 (en) * | 2005-10-21 | 2007-04-26 | Sanmina-Sci, A Delaware Corporation | Self-tuning radio frequency identification antenna system |
| CN204515504U (en) * | 2015-03-27 | 2015-07-29 | 广汉科峰电子有限责任公司 | 5t intelligent tracking device |
| CN205564954U (en) * | 2016-04-25 | 2016-09-07 | 东莞思谷数字技术有限公司 | Adjustable antenna of flexible bend type of RFID |
| CN108107339A (en) * | 2016-11-25 | 2018-06-01 | 华大半导体有限公司 | For the chip impedance of ultra-high frequency RFID label and the test method of sensitivity |
| CN109409156A (en) * | 2018-10-31 | 2019-03-01 | 华大半导体有限公司 | A kind of antenna impedance method of adjustment of UHF RFID label tag |
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2021
- 2021-04-15 CN CN202110405021.1A patent/CN113298201B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070091006A1 (en) * | 2005-10-21 | 2007-04-26 | Sanmina-Sci, A Delaware Corporation | Self-tuning radio frequency identification antenna system |
| CN204515504U (en) * | 2015-03-27 | 2015-07-29 | 广汉科峰电子有限责任公司 | 5t intelligent tracking device |
| CN205564954U (en) * | 2016-04-25 | 2016-09-07 | 东莞思谷数字技术有限公司 | Adjustable antenna of flexible bend type of RFID |
| CN108107339A (en) * | 2016-11-25 | 2018-06-01 | 华大半导体有限公司 | For the chip impedance of ultra-high frequency RFID label and the test method of sensitivity |
| CN109409156A (en) * | 2018-10-31 | 2019-03-01 | 华大半导体有限公司 | A kind of antenna impedance method of adjustment of UHF RFID label tag |
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| CN113298201B (en) | 2023-02-03 |
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