CN105160365A - Warehouse material management system based on radio frequency identification technology - Google Patents
Warehouse material management system based on radio frequency identification technology Download PDFInfo
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Abstract
The invention discloses a warehouse material management system based on a radio frequency identification technology. The warehouse material management system comprises a radio frequency identification reader-writer and a plurality of first couplers. Antenna port modules of the radio frequency identification reader-writer are successively connected with the plurality of first couplers through radio frequency coaxial lines. The radio frequency identification reader-writer comprises a control module, a power supply module, a radio frequency module, the antenna port modules, a communication module and a safety module. The power supply module supplies power to other modules in the reader-writer. The safety module, the communication module and the radio frequency module are connected with the control module. The radio frequency module is connected with the first couplers through the antenna port modules. According to the invention, only by serially connecting the first couplers into the reader-writer, the checking and monitoring of warehouse materials are completed, workers do not need to hold hand-held machines to carry out secondary checking on omitted materials, subjective factors of the workers are eliminated, the manual cost and the equipment cost are lowered, and the reliability of the system is improved; in addition, distribution points of the first couplers are flexible and variable, so that checking dead corners are prevented.
Description
Technical field
The invention belongs to logistics management technical field, particularly a kind of storehouse raw material management system based on REID.
Background technology
Radio-frequency (RF) identification (RadioFrequencyIdentification, RFID), also known as electronic tag (E-Tag), is a kind ofly utilize radiofrequency signal automatically to identify destination object and obtain the technology of relevant information.Along with the progress of technology, RFID application expanding day, has now related to the various aspects of people's daily life, and will become a basic technology of Future Information social construction.RFID typical apply comprises: be used for storehouse management, production line automation, commodity sale in logistics field; Be used at traffic and transport field that container manages with parcel, expressway tol lcollection and Car park payment; Be used for the management of flock of sheep, fish, fruit etc. and pet in farming, animal husbandry and fishery, wild animal follows the tracks of; Pharmaceutical production, patient nursing, medical waste tracking is used in medical industry; The visualized management of parts and stock is used in manufacturing industry; RFID can also be applied to books and the multiple application such as document management, entrance guard management, location and object tracking, environment sensing and check be false proof.
Super high frequency radio frequency recognition read-write machine has remote identification, many tag recognition, efficiency high, along with the development of technology of Internet of things, super high frequency radio frequency recognition read-write machine is widely used in the several scenes such as logistics, staff attendance, asset management and storehouse raw material inventory manage.
Generally, radio-frequency identification reader/writer can support at most the antenna port of 4 road transmit-receive sharings, and under a read write line coordinates No. 4 antenna prerequisites, its effective range of management is quite limited, and greatly may there is the dead angle of making an inventory.Like this, in order to ensuring coverage rate, realize the real time inventory management and supervision at storehouse goods and materials, have to adopt the deployment way of hand-held set cooperation or increase read write line to be made up.Like this, not only cost increases and cannot to realize truly real-time monitors in storehouse greatly, not only increase workload and staff's demand of reality, make an inventory the integration of data to rear end also can the energy of at substantial, automaticity reduces greatly, causes being difficult to spread in practical application.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, there is provided a kind of coupling mechanism serial interface need be entered reading and writing device system and can complete making an inventory and monitoring storehouse raw material, without the need to manually holding hand-held set, the goods and materials omitted are carried out secondary and made an inventory, reduce human cost and equipment cost, improve the storehouse raw material management system based on REID of the reliability of system.
The object of the invention is to be achieved through the following technical solutions: based on the storehouse raw material management system of REID, comprise the radio-frequency identification reader/writer of built-in aerial port module and multiple first coupling mechanism, the antenna port module of radio-frequency identification reader/writer connects multiple first coupling mechanism by radio-frequency (RF) coaxial line successively, and the coupled end of the first coupling mechanism connects antenna respectively.
Further, described radio-frequency identification reader/writer is the super high frequency radio frequency recognition read-write machine of built-in aerial port module.According to practical application scene demand, can be accepted or rejected flexibly, in the hope of realizing systemic-function when reducing costs as far as possible.
Described radio-frequency identification reader/writer comprises control module, power module, radio-frequency module, antenna port module, communication module and security module, power module is respectively all the other each module for power supply in read write line, security module, communication module are connected with control module respectively with radio-frequency module, and radio-frequency module is by antenna port model calling first coupling mechanism;
Control module is embedded processor platform, be made up of ARM+FPGA, the software simulating of radio-frequency (RF) identification air interface protocol has been worked in coordination with by FPGA and ARM, and ARM mainly realizes the relevant Row control of business, and FPGA mainly realizes the coding and the decoding that the process of real time data are comprised to data; Control module is simultaneously for controlling the work of radio-frequency module, security module and communication module, and the data that radio frequency module returns process; Radio-frequency module for completing the modulation and demodulation of data, and amplifies the radiofrequency signal produced; Described security module is used for being encrypted operation for read write line data, and security module comprises encryption submodule and signature submodule, and encryption submodule and signature submodule are all connected to control module; Described communication module exchanges data by wired and/or wireless mode and external unit; Antenna port module is for expanding multi-path antenna port, and the quantity of antenna port can be accepted or rejected according to practical application scene demand, flexibly in the hope of realizing systemic-function when reducing costs as far as possible.The input end of antenna port module is connected with the radiating circuit of read write line, the output port of antenna port module connects multiple first coupling mechanism by radio-frequency (RF) coaxial line successively, so, for the occasion that monitoring range is less, without the need to antenna port module, directly connect the first coupling mechanism and antenna at reading and writing device antenna port, and for the larger occasion of monitoring range, can by antenna port module serial connecting system, expansion multi-path antenna port, meet the requirement of all standing, realize systemic-function.
Power module comprises power supply adaptor, and power supply adaptor comprises alternating current input end and DC output end, and described DC output end is link control module, radio-frequency module, communication module and security module respectively.
Further, described radio-frequency module comprises radiating circuit, receiving circuit and testing circuit, described radiating circuit is turned unbalanced circuit, power amplifier, the second coupling mechanism and the first wave filter formed by the first rf chip, the first match circuit, balance, the radiofrequency signal that first rf chip produces matches 50 ohm through the first match circuit, turn unbalanced circuit through balance again and be converted to single-ended signal, after power amplifier, the second coupling mechanism and the first wave filter, output to each road output port; Described receiving circuit is turned balancing circuitry, the second match circuit and the second rf chip formed by the second wave filter, the 3rd coupling mechanism, imbalance, the signal that read write line port accepts arrives is after the second filter filtering, export from the coupled end of the 3rd coupling mechanism, turn after balancing circuitry is converted to balanced signal through imbalance, then be input to the second rf chip through the second match circuit; Described testing circuit comprises temperature sensing circuit and power-sensing circuit, temperature sensing circuit detects the working temperature of reader/writer module, and the temperature detected is sent to control module, power-sensing circuit detects emissive power and the received power of read write line, and the performance number detected is sent to control module.
Further, described frequency module comprises and being made up of ADF9010, AD9963 mixed signal front end and driving circuit, power amplifier, buffer circuit, detuner and baseband signal filter amplification circuit;
Radio-frequency module transmission channel is made up of AD9963, ADF9010, DAC driving circuit and power amplifier, the output signal of control module is connected with the mixed signal front end of AD9963, the output signal of AD9963 carries out orthogonal modulation by entering ADF9010 after DAC driver, and ADF9010 carries out the output signal of orthogonal modulation successively by entering antenna port module after power amplifier and buffer circuit; The data that control module need be launched or order are carried out DAC conversion and input analog radio frequency front-end A/D F9010 after the process of DAC driving circuit carrying out orthogonal modulation by mixed signal front-end A/D 9963, ADF9010 built-in local vibration source module and exportable local oscillation signal normally work for detuner, the radiofrequency signal through ovennodulation that ADF9010 exports by power amplifier carries out the amplification of appropriateness, antenna port module is sent into again, the transmitting of settling signal through transceiver insulation circuit;
Radio-frequency module receiving cable is made up of buffer circuit, detuner, restituted signal filter amplification circuit, ADF9010, ADC driver and AD9963, the label signal that antenna port module receives is successively by entering ADF9010 after detuner and restituted signal filter amplification circuit, the signal that ADF9010 exports enters AD9963 after ADC driving circuit, and the output terminal of AD9963 is connected with control module.The radiofrequency signal that label returns by detuner carries out demodulation, export baseband signal, baseband signal carries out filtering, amplification and ADC conversion process by restituted signal filter amplification circuit, ADF9010, ADC driving circuit and AD9963 to the signal that demodulation exports, obtain digital signal that control module can directly process for decoding, complete the identification to label return signal, like this, read write line just completes making an inventory to passive electronic label.So, this system supports all air interface protocols of ultra-high frequency band, comprise the most frequently used EPCISO18000-6CC1/GEN2 agreement, GJB7377.1-2011 agreement and be not limited to above two kinds, so under some specific application scenarios, in such as military information process of construction, the monitoring of the special warehouse of army, special materials is made an inventory, and is equipped with special data confidentiality module, all can apply efficiently and not increase research and development and lower deployment cost.
Further, described communication module comprises wire communication module and/or wireless communication module, described wire communication module comprise in cable interface, RS232 serial line interface and USB interface one or more, described wireless communication module comprises one or more the combination in GPRS communication module, SMS communication module, 3G communication module or Wi-Fi communication module.
The invention has the beneficial effects as follows: to existing equipment and system without the need to redesigning and transforming, do not increase software and hardware and system works amount, only coupling mechanism serial interface need be entered reading and writing device system can complete making an inventory and monitoring storehouse raw material, without the need to manually holding hand-held set, the goods and materials omitted are carried out secondary and made an inventory, eliminate the subjective factor of people, reduce human cost and equipment cost, improve the reliability of system, and the flexibility and changeability of layouting of coupling mechanism, can dead angle of making an inventory be strictly on guard against; Can in low cost, high reliability, deployment simple, the convenient and storehouse raw material that realize under prerequisite flexibly truly in storehouse real time inventory and monitoring.
Accompanying drawing explanation
Fig. 1 is storehouse raw material management system structural representation of the present invention;
Fig. 2 is radio-frequency identification reader/writer construction module figure of the present invention;
Fig. 3 is radio-frequency identification reader/writer internal radio frequency module circuit diagram of the present invention.
Embodiment
Technical scheme of the present invention is further illustrated below in conjunction with accompanying drawing.
As shown in Figure 1, based on the storehouse raw material management system of REID, comprise the radio-frequency identification reader/writer of built-in aerial port module and multiple first coupling mechanism, the antenna port module of radio-frequency identification reader/writer connects multiple first coupling mechanism by radio-frequency (RF) coaxial line successively, and the coupled end of the first coupling mechanism connects antenna respectively.
Further, described radio-frequency identification reader/writer is the super high frequency radio frequency recognition read-write machine of built-in aerial port module.According to practical application scene demand, can be accepted or rejected flexibly, in the hope of realizing systemic-function when reducing costs as far as possible.
As shown in Figure 2, described radio-frequency identification reader/writer of the present invention comprises control module, power module, radio-frequency module, antenna port module, communication module and security module, power module is respectively all the other each module for power supply in read write line, security module, communication module are connected with control module respectively with radio-frequency module, and radio-frequency module is by antenna port model calling first coupling mechanism;
Control module is embedded processor platform, be made up of ARM+FPGA, the software simulating of radio-frequency (RF) identification air interface protocol has been worked in coordination with by FPGA and ARM, and ARM mainly realizes the relevant Row control of business, and FPGA mainly realizes the coding and the decoding that the process of real time data are comprised to data; Control module is simultaneously for controlling the work of radio-frequency module, security module and communication module, and the data that radio frequency module returns process; Radio-frequency module for completing the modulation and demodulation of data, and amplifies the radiofrequency signal produced; Described security module is used for being encrypted operation for read write line data, and security module comprises encryption submodule and signature submodule, and encryption submodule and signature submodule are all connected to control module; Described communication module exchanges data by wired and/or wireless mode and external unit; Antenna port module is for expanding multi-path antenna port, and the quantity of antenna port can be accepted or rejected according to practical application scene demand, flexibly in the hope of realizing systemic-function when reducing costs as far as possible.The input end of antenna port module is connected with the radiating circuit of read write line, the output port of antenna port module connects multiple first coupling mechanism by radio-frequency (RF) coaxial line successively, so, for the occasion that monitoring range is less, without the need to antenna port module, directly connect the first coupling mechanism and antenna at reading and writing device antenna port, and for the larger occasion of monitoring range, can by antenna port module serial connecting system, expansion multi-path antenna port, meet the requirement of all standing, realize systemic-function.
Power module comprises power supply adaptor, and power supply adaptor comprises alternating current input end and DC output end, and described DC output end is link control module, radio-frequency module, communication module and security module respectively.
Further, a kind of embodiment of radio-frequency module of the present invention is: radio-frequency module comprises radiating circuit, receiving circuit and testing circuit, described radiating circuit is turned unbalanced circuit, power amplifier, the second coupling mechanism and the first wave filter formed by the first rf chip, the first match circuit, balance, the radiofrequency signal that first rf chip produces matches 50 ohm through the first match circuit, turn unbalanced circuit through balance again and be converted to single-ended signal, after power amplifier, the second coupling mechanism and the first wave filter, output to each road output port; Described receiving circuit is turned balancing circuitry, the second match circuit and the second rf chip formed by the second wave filter, the 3rd coupling mechanism, imbalance, the signal that read write line port accepts arrives is after the second filter filtering, export from the coupled end of the 3rd coupling mechanism, turn after balancing circuitry is converted to balanced signal through imbalance, then be input to the second rf chip through the second match circuit; Described testing circuit comprises temperature sensing circuit and power-sensing circuit, temperature sensing circuit detects the working temperature of reader/writer module, and the temperature detected is sent to control module, power-sensing circuit detects emissive power and the received power of read write line, and the performance number detected is sent to control module.
Further, the another kind of embodiment of radio-frequency module of the present invention is: radio-frequency module is made up of ADF9010, AD9963 mixed signal front end and driving circuit, power amplifier, buffer circuit, detuner and baseband signal filter amplification circuit;
As shown in Figure 3; Radio-frequency module transmission channel is made up of AD9963, ADF9010, DAC driving circuit and power amplifier, the output signal of control module is connected with the mixed signal front end of AD9963, the output signal of AD9963 carries out orthogonal modulation by entering ADF9010 after DAC driver, and ADF9010 carries out the output signal of orthogonal modulation successively by entering antenna port module after power amplifier and buffer circuit; The data that control module need be launched or order are carried out DAC conversion and input analog radio frequency front-end A/D F9010 after the process of DAC driving circuit carrying out orthogonal modulation by mixed signal front-end A/D 9963, ADF9010 built-in local vibration source module and exportable local oscillation signal normally work for detuner, the radiofrequency signal through ovennodulation that ADF9010 exports by power amplifier carries out the amplification of appropriateness, antenna port module is sent into again, the transmitting of settling signal through transceiver insulation circuit.
Radio-frequency module receiving cable is made up of buffer circuit, detuner, restituted signal filter amplification circuit, ADF9010, ADC driver and AD9963, the label signal that antenna port module receives is successively by entering ADF9010 after detuner and restituted signal filter amplification circuit, the signal that ADF9010 exports enters AD9963 after ADC driving circuit, and the output terminal of AD9963 is connected with control module; The radiofrequency signal that label returns by detuner carries out demodulation, export baseband signal, baseband signal carries out filtering, amplification and ADC conversion process by restituted signal filter amplification circuit, ADF9010, ADC driving circuit and AD9963 to the signal that demodulation exports, obtain digital signal that control module can directly process for decoding, complete the identification to label return signal, like this, read write line just completes making an inventory to passive electronic label.So, this system supports all air interface protocols of ultra-high frequency band, comprise the most frequently used EPCISO18000-6CC1/GEN2 agreement, GJB7377.1-2011 agreement and be not limited to above two kinds, so under some specific application scenarios, in such as military information process of construction, the monitoring of the special warehouse of army, special materials is made an inventory, and is equipped with special data confidentiality module, all can apply efficiently and not increase research and development and lower deployment cost.
The radio-frequency identification reader/writer of the present embodiment arranges 4 road antenna ports altogether, 4 road antenna port modules are connected with the first coupling mechanism of rear end successively respectively by radio-frequency (RF) coaxial line as required, the position that first coupler is needing, the input end of the first coupling mechanism is connected with read write line output port by radio-frequency (RF) coaxial line, the coupled end of the first coupling mechanism connects antenna, the output terminal of the first coupling mechanism down extends to the next one to be needed to arrange the some position of antenna and is again connected with the input end of next first coupling mechanism, analogize in proper order, can in warehouse all need arrange antenna some position on Reasonable Arrangement antenna, reach all standing, complete and the real-time of whole storehouse raw material is made an inventory in storehouse.
Further, described communication module comprises wire communication module and/or wireless communication module, described wire communication module comprise in cable interface, RS232 serial line interface and USB interface one or more, described wireless communication module comprises one or more the combination in GPRS communication module, SMS communication module, 3G communication module or Wi-Fi communication module.
The present invention is by increasing some coupling mechanisms (the first coupling mechanism) and being arranged in rational position according to the actual conditions in warehouse, to meet whole storehouse raw material in real time at the inventory manage in storehouse.Due to flexibility and changeability of layouting, so just thoroughly solve the problem at the dead angle of making an inventory of current traditional scheme.
During onsite application, use the radio-frequency (RF) coaxial line connected system of different length according to actual conditions, and the usage quantity adjusting reading and writing device antenna port can complete making an inventory and monitoring storehouse raw material, and real-time uploading data information.
The present invention without the need to existing equipment and system without the need to redesigning and transforming, do not increase software and hardware and system works amount, only the first coupling mechanism serial interface need be entered reading and writing device system, and the flexibility and changeability of layouting of the first coupling mechanism, be strictly on guard against dead angle of making an inventory, without the need to manually holding hand-held set, the goods and materials omitted are carried out secondary and made an inventory, reduce human cost and equipment cost.Cost increase aspect, only need increase the first coupling mechanism and some radio-frequency (RF) coaxial lines, cost is relative moderate all.With regard to whole application system, cost will reduce greatly.Reliability aspect, because whole system is full-automatic inventory manage, eliminate the subjective factor of people, and do not carry out secondary make an inventory at use hand-held set, and the equipment increased or annex only have the first coupling mechanism and radio-frequency (RF) coaxial line, this kind of inactive component or annex be not when by physical damage, and reliability is very high.System aspects, eliminates the individual factor of operating personnel, and improve the automatization level of whole application system, reliability improves greatly.System deployment is simple, convenient and flexible.According to the actual conditions in warehouse, the usage quantity of reading and writing device antenna port and the quantity of rear end first coupling mechanism and antenna can be adjusted flexibly, be conducive to the reduction of cost.
In electronic tag ablation process, No. ID, security module radio frequency identification electronic tag and need to write the data of radio frequency recognizing electronic label and be encrypted and sign, generates encryption and signed data, then writes electronic tag again, in electronic tag reading process, decrypt data and sign test in security module radio frequency identification electronic tag, obtain deciphering and verification msg, and verify its integrality and authenticity, thus realize operating the encrypting read/write of electronic tag, prevent RFID information from being obtained by the read write line of other compatibility, the security of guarantee information, and then significantly promote the security of the Internet of things system based on RFID, and the radio frequency recognizing electronic label read write line structure of high confidence level passive ultra-high frequency of the present invention is simple, with low cost, application mode is easy, range of application is also comparatively extensive.
In sum, apply this deployment scheme, can in low cost, high reliability, deployment simple, the convenient and storehouse raw material that realize under prerequisite flexibly truly in storehouse real time inventory and monitoring.
Those of ordinary skill in the art will appreciate that, embodiment described here is to help reader understanding's principle of the present invention, should be understood to that protection scope of the present invention is not limited to so special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combination of not departing from essence of the present invention according to these technology enlightenment disclosed by the invention, and these distortion and combination are still in protection scope of the present invention.
Claims (7)
1. based on the storehouse raw material management system of REID, it is characterized in that, comprise the radio-frequency identification reader/writer of built-in aerial port module and multiple first coupling mechanism, the antenna port module of radio-frequency identification reader/writer connects multiple first coupling mechanism by radio-frequency (RF) coaxial line successively, and the coupled end of the first coupling mechanism connects antenna respectively.
2. the storehouse raw material management system based on REID according to claim 1, is characterized in that, described radio-frequency identification reader/writer is the super high frequency radio frequency recognition read-write machine of built-in aerial port module.
3. the storehouse raw material management system based on REID according to claim 1 and 2, it is characterized in that, described radio-frequency identification reader/writer comprises control module, power module, radio-frequency module, antenna port module, communication module and security module, power module is respectively all the other each module for power supply in read write line, security module, communication module are connected with control module respectively with radio-frequency module, and radio-frequency module is by antenna port model calling first coupling mechanism;
Control module is embedded processor platform, be made up of ARM+FPGA, the software simulating of radio-frequency (RF) identification air interface protocol has been worked in coordination with by FPGA and ARM, and ARM mainly realizes the relevant Row control of business, and FPGA mainly realizes the coding and the decoding that the process of real time data are comprised to data; Control module is simultaneously for controlling the work of radio-frequency module, security module and communication module, and the data that radio frequency module returns process; Radio-frequency module for completing the modulation and demodulation of data, and amplifies the radiofrequency signal produced; Described security module is used for being encrypted operation for read write line data, and security module comprises encryption submodule and signature submodule, and encryption submodule and signature submodule are all connected to control module; Described communication module exchanges data by wired and/or wireless mode and external unit; Antenna port module is for expanding multi-path antenna port, and the input end of antenna port module is connected with the radiating circuit of read write line, and the output port of antenna port module connects multiple first coupling mechanism by radio-frequency (RF) coaxial line successively.
4. the storehouse raw material management system based on REID according to claim 3, it is characterized in that, described power module comprises power supply adaptor, power supply adaptor comprises alternating current input end and DC output end, and described DC output end is link control module, radio-frequency module, communication module and security module respectively.
5. the storehouse raw material management system based on REID according to claim 3, it is characterized in that, described radio-frequency module comprises radiating circuit, receiving circuit and testing circuit, described radiating circuit is by the first rf chip, first match circuit, balance turns unbalanced circuit, power amplifier, second coupling mechanism and the first wave filter composition, the radiofrequency signal that first rf chip produces matches 50 ohm through the first match circuit, turn unbalanced circuit through balance again and be converted to single-ended signal, through power amplifier, each road output port is outputted to after second coupling mechanism and the first wave filter,
Described receiving circuit is turned balancing circuitry, the second match circuit and the second rf chip formed by the second wave filter, the 3rd coupling mechanism, imbalance, the signal that read write line port accepts arrives is after the second filter filtering, export from the coupled end of the 3rd coupling mechanism, turn after balancing circuitry is converted to balanced signal through imbalance, then be input to the second rf chip through the second match circuit;
Described testing circuit comprises temperature sensing circuit and power-sensing circuit, temperature sensing circuit detects the working temperature of reader/writer module, and the temperature detected is sent to control module, power-sensing circuit detects emissive power and the received power of read write line, and the performance number detected is sent to control module.
6. the storehouse raw material management system based on REID according to claim 3, it is characterized in that, described frequency module comprises and being made up of ADF9010, AD9963 mixed signal front end and driving circuit, power amplifier, buffer circuit, detuner and baseband signal filter amplification circuit;
Radio-frequency module transmission channel is made up of AD9963, ADF9010, DAC driving circuit and power amplifier, the output signal of control module is connected with the mixed signal front end of AD9963, the output signal of AD9963 carries out orthogonal modulation by entering ADF9010 after DAC driver, and ADF9010 carries out the output signal of orthogonal modulation successively by entering antenna port module after power amplifier and buffer circuit;
Radio-frequency module receiving cable is made up of buffer circuit, detuner, restituted signal filter amplification circuit, ADF9010, ADC driver and AD9963, the label signal that antenna port module receives is successively by entering ADF9010 after detuner and restituted signal filter amplification circuit, the signal that ADF9010 exports enters AD9963 after ADC driving circuit, and the output terminal of AD9963 is connected with control module.
7. the storehouse raw material management system based on REID according to claim 3, it is characterized in that, described communication module comprises wire communication module and/or wireless communication module, described wire communication module comprise in cable interface, RS232 serial line interface and USB interface one or more, described wireless communication module comprises one or more the combination in GPRS communication module, SMS communication module, 3G communication module or Wi-Fi communication module.
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| CN105678352A (en) * | 2015-12-31 | 2016-06-15 | 电子科技大学 | Long distance high speed data transmission system based on ultrahigh frequency RFID |
| CN106339646A (en) * | 2016-08-26 | 2017-01-18 | 无锡卓信信息科技股份有限公司 | Non-contact RFID reader and writer |
| CN107506962A (en) * | 2017-08-18 | 2017-12-22 | 上海上大鼎正软件股份有限公司 | A kind of logistic storage management-control method of the Hazardous Chemical Substances based on RFID |
| CN107832818A (en) * | 2017-12-08 | 2018-03-23 | 江苏本能科技有限公司 | Radio-frequency identification reader/writer and Roadside Parking management system based on multizone identification |
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| CN112396377A (en) * | 2020-11-20 | 2021-02-23 | 国网天津市电力公司 | Power equipment warehouse management and control system based on Internet of things |
| CN113064368A (en) * | 2021-03-18 | 2021-07-02 | 科海技术股份有限公司 | High-power radio frequency power supply system |
| CN115688823A (en) * | 2022-10-26 | 2023-02-03 | 国网湖北省电力有限公司黄冈供电公司 | Intelligent control system for checking of warehouse materials of intelligent power station |
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Inventor after: Wang Liming Inventor after: Gao Kai Inventor after: Han Nenghua Inventor before: Gao Kai Inventor before: Han Nenghua |
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Application publication date: 20151216 |