CN102542218B - Method and system for transmitting radio frequency identification (RFID) data, and hardware platform for RFID label - Google Patents
Method and system for transmitting radio frequency identification (RFID) data, and hardware platform for RFID label Download PDFInfo
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Abstract
The invention provides a method and a system for transmitting radio frequency identification (RFID) data, and a hardware platform for an RFID label, and belongs to the field of Internet of things wireless data service communication. The method comprises the following steps that: when receiving a request message from an RFID reader, the hardware platform for the RFID label starts RFID data transmission and transmits the RFID data to the RFID reader according to the request message; and when the request message from the RFID reader is not received within a preset time period, the hardware platform for the RFID label automatically starts the RFID data transmission and transmits the RFID data to the RFID reader. During RFID data transmission, transmission modes of the hardware platform for the RFID label can be automatically switched between an active transmission mode and a passive transmission mode, so that the power consumption caused during the RFID data transmission is reduced effectively.
Description
Technical field
The invention belongs to the Internet of Things wireless data service communications field, particularly relate to the hardware platform of the method for a kind of RFID (radio-frequency (RF) identification) data transmission, system and RFID label tag.
Background technology
In recent years, the development of sensor technology, RFID technique, wireless sensor network technology and mobile communication technology all causes a change to various fields.Realize arbitrary wireless interconnected intercommunication based on microterminal equipment, just will become new research in new high-tech focus and market investment focus, city various pipe network information construct and manage is also without unexceptional.
In rfid system, signal transmitter, in order to different application purposes, can exist in different forms, and typical form is label (TAG).Label is equivalent to the bar code symbol in barcode technology, is used for storing the information needing to identify transmission, in addition, automatically or under the effect of external force, the information active stored must be launched unlike, label with bar code.Label is generally the low electric integrated circuit with coil, antenna, storer and control system.The mode obtaining electric energy according to label is different, label can be divided into active tag and passive label.
The RFID unit of active transmission radiofrequency signal is called active tag, and this active tag inside powers from charged pool, and the electric energy of active tag is sufficient, and functional reliability is high, the distance that signal transmits.The serviceable life of the shortcoming of active tag mainly label is restricted, and along with the consumption of battery electric power in label, the distance of data transmission can be more and more less, the normal work of influential system.
The RFID unit of active transmission radiofrequency signal is called passive label, this passive label inside not charged pool, outer boundary to provide energy normally to work.The device that passive label typically produces electric energy is antenna and coil, and when label enters the perform region of system, antenna receives specific electromagnetic wave, and coil will produce induction current, is giving tag-powered through rectification circuit.Passive label has the permanent operating period, and being usually used in label information needs read and write every day or frequent read-write place repeatedly, and the long data of passive label support are transmitted and permanent data store.The distance of the shortcoming of passive label mainly data transmission is shorter than active tag.Power because passive label relies on outside electromagnetic induction, its electric energy is just more weak, and the Distance geometry signal intensity of data transmission is just restricted, and the signal receiver (RFID reader) needing susceptibility higher could reliably be distinguished.
Although there is at present the application of some active RFID technology, the main transmission mode of label is: active transmission radiofrequency signal, and selects this kind of transmission mode surely can produce a large amount of power consumptions for a long time, not too utilizes applying of low-power consumption product.
Summary of the invention
In order to solve the problem, the object of this invention is to provide the hardware platform of the method for a kind of radio frequency identification data transmission, system and RFID label tag, achieve in RFID data transmitting procedure, the transmission mode of the hardware platform of RFID label tag mutually can automatically switch between active transmission mode and passive transmission mode, effectively reduces the power consumption produced in RFID data transmitting procedure.
In order to achieve the above object, the invention provides the method for a kind of radio frequency identification data transmission, described method comprises:
When the hardware platform of radio frequency identification (RFID) labels receives the request message from radio frequency discrimination RFID reader, according to described request message, start the transmission of radio frequency discrimination RFID data, RFID data is transferred to RFID reader by the hardware platform of RFID label tag;
When the hardware platform of RFID label tag does not receive the request message from RFID reader within a predetermined period of time, the hardware platform of RFID label tag starts RFID data transmission automatically, and RFID data is transferred to RFID reader.
Preferably, described according to described request message, the step starting the transmission of radio frequency discrimination RFID data specifically comprises:
According to described request message, wake the microcontroller in the hardware platform of described RFID label tag up;
Sensor in the hardware platform of RFID label tag described in described microprocessor controls carries out the collection of RFID data;
After described RFID data collection completes, close described sensor.
Preferably, after RFID data is transferred to the step of RFID reader by the hardware platform of described RFID label tag, described method also comprises:
After described RFID data is transmitted, described microcontroller enters into dormant state.
Preferably, the hardware platform of described RFID label tag automatically start RFID data transmission step specifically comprise:
Automatically the microcontroller in the hardware platform of described RFID label tag is waken up;
Sensor in the hardware platform of RFID label tag described in described microprocessor controls carries out the collection of RFID data; After described RFID data collection completes, close described sensor.
Preferably, described RFID data is transferred to the step of RFID reader after, described method also comprises:
After described RFID data is transmitted, described microcontroller enters into dormant state, and starts next round timing.
Preferably, described method also comprises:
Pre-set the mode of operation of described RFID reader, described mode of operation comprises: active request pattern and passive receiving mode, wherein
When the mode of operation of described RFID reader is active request pattern, in described predetermined amount of time, described RFID reader sends described request message to the hardware platform of described RFID label tag.
Preferably, described method also comprises:
When the mode of operation of described RFID reader is passive receiving mode, the RFID data that the hardware platform that described RFID reader circulation receives described RFID label tag sends.
In order to achieve the above object, the system that the present invention also provides a kind of radio frequency identification data to transmit, comprise: the hardware platform of RFID label tag and RFID reader, the hardware platform of described RFID label tag, for when receiving the request message from RFID reader, according to described request message, start RFID data transmission, RFID data is transferred to RFID reader; And, when not receiving the request message from RFID reader within a predetermined period of time, automatically starting RFID data transmission, RFID data is transferred to RFID reader.
Preferably, the hardware platform of described RFID label tag comprises:
Sensor, for gathering RFID data;
Label microcontroller, is connected with described sensor, and for when receiving the request message from RFID reader, according to described request message, start RFID data transmission, the described RFID data gathered by described sensor is transferred to RFID reader; And for when not receiving the request message from RFID reader within a predetermined period of time, automatically start RFID data transmission, the described RFID data gathered by described sensor is transferred to RFID reader;
Label antenna, is connected with described label microcontroller, for carrying out radio communication with RFID reader;
Tag-powered module, is connected with described sensor and described label microcontroller, for powering to described sensor and described label microcontroller.
Preferably, described RFID reader comprises:
Reader antenna, for carrying out radio communication with the hardware platform of described RFID label tag;
Reader microcontroller, be connected with described reader antenna, for pre-setting the mode of operation of described RFID reader, described mode of operation comprises: active request pattern and passive receiving mode, when the mode of operation of described RFID reader is active request pattern, in described predetermined amount of time, the hardware platform to described RFID label tag sends described request message; When the mode of operation of described RFID reader is passive receiving mode, the RFID data that the hardware platform that circulation receives described RFID label tag sends;
External communication interface, is connected with described reader microcontroller, forwards described RFID data for external device;
Reader supply module, is connected with described reader antenna, described reader microcontroller and external communication interface, for powering to described reader antenna, described reader microcontroller and described external communication interface.
In order to achieve the above object, the present invention also provides a kind of hardware platform of RFID label tag, comprising:
Sensor, for gathering RFID data;
Label microcontroller, is connected with described sensor, and for when receiving the request message from RFID reader, according to described request message, start RFID data transmission, the described RFID data gathered by described sensor is transferred to RFID reader; And for when not receiving the request message from RFID reader within a predetermined period of time, automatically start RFID data transmission, the described RFID data gathered by described sensor is transferred to RFID reader;
Label antenna, is connected with described label microcontroller, for carrying out radio communication with RFID reader;
Tag-powered module, is connected with described sensor and described label microcontroller, for powering to described sensor and described label microcontroller.
As shown from the above technical solution, embodiments of the invention have following beneficial effect: when the hardware platform of RFID label tag receives the request message from RFID reader, according to request message, start RFID data transmission, RFID data is transferred to RFID reader by the hardware platform of RFID label tag; When the hardware platform of RFID label tag does not receive the request message from RFID reader within a predetermined period of time, the hardware platform of RFID label tag starts RFID data transmission automatically, and RFID data is transferred to RFID reader, achieve in RFID data transmitting procedure, the transmission mode of the hardware platform of RFID label tag mutually can automatically switch between active transmission mode and passive transmission mode, the power consumption of the generation in effective reduction RFID data transmitting procedure, this RFID data transmission mode can serve urban duct on-line monitoring field for a long time.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of RFID data transmission in embodiments of the invention;
Fig. 2 is the process flow diagram of the passive transmission mode of hardware platform of RFID label tag in embodiments of the invention;
Fig. 3 is the process flow diagram of the hardware platform active transmission mode of RFID label tag in embodiments of the invention;
Fig. 4 is the process flow diagram of the reading data of RFID reader in embodiments of the invention;
Fig. 5 is the structural representation of the hardware platform of RFID label tag in embodiments of the invention;
Fig. 6 is the structural representation of RFID reader in embodiments of the invention.
Embodiment
In order to make the object of the embodiment of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the embodiment of the present invention is described in detail.At this, illustrative examples of the present invention and illustrating for explaining the present invention, but not as a limitation of the invention.
See Fig. 1, be the method flow diagram of RFID data transmission in embodiments of the invention, concrete steps are as follows:
Do you step 101, judge that the hardware platform of RFID label tag receives the request message from RFID reader within a predetermined period of time? if so, step 102 is performed; Otherwise, perform step 103;
Step 102, when the hardware platform of RFID label tag receives request message from RFID reader, according to described request message, start RFID data transmission, RFID data is transferred to RFID reader by the hardware platform of RFID label tag;
After the hardware platform of RFID label tag receives request message, this request message can wake the microcontroller on the hardware platform of RFID label tag up, starts RFID data transmitting procedure by this microcontroller.This RFID data transmission mode can be described as the passive transmission mode of RFID data.
In the present embodiment, the above-mentioned request message polling message that can be RFID reader send to the hardware platform of RFID label tag, this polling message refers to that RFID reader interval predetermined time constantly sends a request message to the hardware platform of RFID label tag.
Step 103, when the hardware platform of RFID label tag does not receive the request message from RFID reader within a predetermined period of time, the hardware platform of RFID label tag starts RFID data transmission automatically, and RFID data is transferred to RFID reader.
When the hardware platform of RFID label tag does not receive the request message from RFID reader within a predetermined period of time, the hardware platform of RFID label tag starts RFID data transmission automatically.This RFID data transmission mode can be described as the active transmission mode of RFID data.
In the present embodiment, the hardware platform of this RFID label tag carrys out timing by timer, to judge the request message that whether receives within a predetermined period of time from RFID reader, do not limit the concrete scope of this section in the present embodiment predetermined time, can adjust as the case may be.
The RFID data transmitting procedure of the hardware platform side of RFID label tag is described in step 101 ~ step 103.Accordingly, also comprise the RFID data transmitting procedure of RFID reader side in the above-mentioned methods, concrete steps are as follows:
Pre-set the mode of operation of RFID reader, described mode of operation comprises: active request pattern and passive receiving mode, wherein
When the mode of operation of described RFID reader is active request pattern, in described predetermined amount of time, described RFID reader sends a request message to the hardware platform of described RFID label tag;
When the mode of operation of described RFID reader is passive receiving mode, the RFID data that the hardware platform that described RFID reader circulation receives described RFID label tag sends.
In the present embodiment, the transmission mode that can realize RFID data by performing above-mentioned steps automatically switches between active transmission mode and passive transmission mode.This switching mode can be by arranging a timing variable parameter on the hardware platform of RFID label tag, realizing the automatic switchover of two kinds of transmission modes.
The passive transmission mode of transmission mode of such as system default RFID data between the hardware platform and RFID reader of RFID label tag, when the hardware platform of RFID label tag is not owing to receiving request message within a predetermined period of time, MCU (microcontroller) in the hardware platform of RFID label tag can be waken up automatically, and the sensor started in the hardware platform of RFID label tag read RFID data, then by the antenna of the hardware platform of RFID label tag, the label ID of the hardware platform of RFID label tag and the RFID data of collection are sent, thus realize automatically switching to active transmission mode from passive transmission mode.
Below in hardware platform and the RFID reader of introducing RFID label tag in conjunction with concrete flow process, the workflow in active transmission mode and passive transmission mode.
See Fig. 2, be the process flow diagram of the passive transmission mode of the hardware platform of RFID label tag in embodiments of the invention, concrete steps are as follows:
The request message that step 201, reception RFID reader send;
Such as: this request message can be the polling message of RFID data.
Step 202, the MCU waken up in the hardware platform of RFID label tag;
By receiving the request message from RFID reader, wake the MCU in the hardware platform of RFID label tag up.The modules that this MCU is used in the hardware platform of RFID label tag controls, and completes and carries out control and management to the related data of each module.
Step 203, MCU control the sensor started in the hardware platform of RFID label tag;
In the present embodiment, this sensor can cover various types of sensor device or other induction conduction components and parts comprehensively, for completing the work such as the perception of extraneous testee relevant state data and collection.
Sensor in the hardware platform of step 204, RFID label tag carries out RFID data collection;
Step 205, MCU carry out respective handling to the RFID data that sensor collects;
Step 206, to process after RFID data carry out caching process;
Such as, can a memory module (such as flash memory module) be set in the hardware platform of RFID label tag, for carrying out buffer memory to RFID data.
Step 207, MCU control closure sensor;
RFID label tag No. ID and RFID data are sent to RFID card reader by the antenna in the hardware platform of step 208, RFID label tag;
After step 209, RFID data are transmitted, MCU enters dormant state.
In step 201 ~ 209, describe the passive transmission mode of the RFID data of the hardware platform of RFID label tag.In the passive transmission mode of the hardware platform of RFID label tag, mainly sent a request message by RFID reader, with the antenna-coupled of the hardware platform of RFID label tag, and related work energy is provided, to wake the MCU in the hardware platform of RFID label tag up, then MCU controls the collection that sensor carries out RFID data, and MCU carries out respective handling according to the RFID data of the collection of sensor, then by antenna, RFID label tag No. ID and RFID data is sent to RFID reader.The hardware platform of such RFID label tag can be in dormant state always, runs for a long time provide guarantee for system.
See Fig. 3, be the process flow diagram of the hardware platform active transmission mode of RFID label tag in embodiments of the invention, concrete steps are as follows:
Step 301, timer switch;
Namely, when not receiving the request message from RFID reader within a predetermined period of time, transmission mode is switched to active transmission mode by passive transmission mode, then perform step 302;
In the present embodiment, this timer accessible site is arranged in MCU.
Step 302, the MCU waken up in the hardware platform of RFID label tag;
Step 303, MCU control the sensor started in the hardware platform of RFID label tag;
Sensor in the hardware platform of step 304, RFID label tag carries out data acquisition;
Step 305, MCU process the data that sensor collects;
Step 306, MCU control closure sensor;
The ID of RFID label tag and RFID data are sent to RFID card reader by the antenna in the hardware platform of step 307, RFID label tag;
After step 308, RFID data are transmitted, MCU enters dormant state;
Step 309, startup timer.
Namely, after data are transmitted, MCU enters into dormant state, and starts next round timing.
In step 301 ~ 309, describe the active transmission mode of the RFID data of the hardware platform of RFID label tag.Be in active transmission mode at the hardware platform of RFID label tag, when (Timer Controlling) does not receive request message to the hardware platform of RFID label tag within a predetermined period of time, automatically the MCU in the hardware platform of RFID label tag is waken up, by upper electric transducer, sensor is made to carry out the collection of RFID data, the RFID data collected is through MCU process, self RFID label tag No. ID is integrated with RFID data, sent by the antenna in the hardware platform of RFID label tag, MCU enters dormant state automatically subsequently, and starts next round timing.
If during this, when the hardware platform of RFID label tag receives the request message of RFID reader, then automatically stop active transmission mode, change passive transmission mode into.
In the present embodiment, in order to ensure the low power consumption characteristic of system, the hardware platform of RFID label tag adopts passive transmission mode usually, but simultaneously in order to avoid the hardware platform of long-time RFID label tag does not receive RFID request message, and lose the data acquisition of relevant material time point, by the automatic switchover of the hardware platform transmission mode of RFID label tag, namely automatically switch to active transmission mode by passive transmission mode, to reach intelligent transportation and the monitoring object of RFID data.
As shown in Figure 4, be the process flow diagram of the reading RFID data of RFID reader in embodiments of the invention, concrete steps are as follows:
Step 401, initialization RFID reader;
Step 402, the mode of operation of RFID reader is set, if mode of operation is active request pattern, then performs step 403; If mode of operation is passive receiving mode, then perform step 408;
In the present embodiment, the mode of operation of RFID reader comprises: active request pattern and passive receiving mode, and wherein active request pattern refers to that this RFID reader initiatively sends a request message (polling message) to the hardware platform of RFID label tag; Passive receiving mode refers to that RFID reader does not send a request message to the hardware platform of RFID label tag, and passive reception is from the RFID data of the hardware platform of RFID label tag.
Step 403, initialize Timer;
This initialize Timer can refer to and carry out clearing process to timer.
Step 404, judge whether then timer, if so, perform step 405; Otherwise, continue to perform step 404;
Step 405, RFID reader send polling message to the hardware platform of RFID label tag;
Namely, RFID reader interval one predetermined time just sends a request message to the hardware platform of RFID label tag;
Step 406, RFID reader obtain the RFID data from the hardware platform of RFID label tag;
Step 407, preserve this RFID data, or be sent to destination by external communication interface, then return step 404;
In the present embodiment, external communication interface mainly realizes the data retransmission between external unit, and this external interface is common serial communication interface, such as: TTL USART mouth, RS-232 serial ports, RS-485 serial ports, USB interface, Ethernet interface etc.By dissimilar interface, different connection devices can be configured, be convenient to expansion and the application of RFID reader.
Step 408, RFID reader arrange a mailing address;
Step 409, start passive receiving mode;
Step 410, RFID reader receive the RFID data from the hardware platform of RFID label tag;
Step 411, preserve this RFID data, or be sent to destination by external communication interface, then return step 409.
Step 401 ~ step 411 describes the process of the reading RFID data of RFID reader, and first initialization RFID reader arranges RFID reader mode of operation.If active request pattern, RFID reader can arrange a timer timing and relevant initiatively poll name syllabified code, then the timing function of timer is started, according to the RFID read-write order pre-set, the hardware platform periodically toward the RFID label tag of belt sensor carries out poll peek operation; If passive receiving mode, the hardware platform of RFID label tag needs to arrange a mailing address, then starts passive receiving mode, the RFID data that the hardware platform that circulation receives RFID label tag sends.
The system that a kind of radio frequency identification data transmits also is provided in an embodiment of the present invention, comprise: the hardware platform of RFID label tag and RFID reader, the hardware platform of wherein said RFID label tag, for when receiving the request message from RFID reader, according to described request message, start RFID data transmission, RFID data is transferred to RFID reader; And, for when not receiving the request message from RFID reader within a predetermined period of time, automatically starting RFID data transmission, RFID data is transferred to RFID reader.
See Fig. 5, be the structural representation of the hardware platform of RFID label tag in embodiments of the invention, from figure, the hardware platform of this RFID label tag comprises:
Sensor 51, for gathering RFID data;
Label microcontroller 52, is connected with described sensor 51, and for when receiving the request message from RFID reader, according to described request message, start RFID data transmission, the described RFID data gathered by described sensor is transferred to RFID reader; And for when not receiving the request message from RFID reader within a predetermined period of time, automatically start RFID data transmission, the described RFID data gathered by described sensor is transferred to RFID reader;
Label antenna 53, is connected with described label microcontroller 52, for carrying out radio communication with RFID reader;
Tag-powered module 54, is connected with described sensor 51 and described label microcontroller 52, for powering to described sensor 51 and described label microcontroller 52.
In an embodiment of the present invention, the hardware platform of this RFID label tag also comprises: analog/digital conversion module 55 and input/output module 56, this analog/digital conversion module 55 for realizing the data conversion between simulating signal to digital signal, and completes the basic input/output operations of data by input/output module 56.
In an embodiment of the present invention, the hardware platform of this RFID label tag also comprises: crystal oscillator module 57, for providing clock signal to the hardware platform of RFID label tag, realizes the synchronous acquisition of data and the synchronous operation of related communication.
In an embodiment of the present invention, the hardware platform of this RFID label tag also comprises: flash memory module 58, carries out caching for the RFID data collected sensor 51.
See Fig. 6, be the structural representation of RFID reader in embodiments of the invention, from figure, RFID reader comprises:
Reader antenna 61, for carrying out radio communication with the hardware platform of described RFID label tag;
Reader microcontroller 62, be connected with described reader antenna 61, for pre-setting the mode of operation of described RFID reader, described mode of operation comprises: active request pattern and passive receiving mode, when the mode of operation of described RFID reader is active request pattern, in described predetermined amount of time, the hardware platform to described RFID label tag sends described request message; When the mode of operation of described RFID reader is passive receiving mode, the RFID data that the hardware platform that circulation receives described RFID label tag sends;
External communication interface 63, is connected with described reader microcontroller 62, forwards described RFID data for external device;
Reader supply module 64, is connected with described reader antenna 61, described reader microcontroller 62 and external communication interface 63, for powering to described reader antenna 61, described reader microcontroller 62 and described external communication interface 63.
In an embodiment of the present invention, this RFID reader also comprises: flash memory module 64, carries out caching for the RFID data collected reader antenna 61.
In an embodiment of the present invention, this RFID reader also comprises: crystal oscillator module 65, for providing clock signal to RFID reader, realizes the synchronous acquisition of data and the synchronous operation of related communication.
A kind of hardware platform of RFID label tag is also provided in an embodiment of the present invention, comprises:
Sensor, for gathering RFID data;
Label microcontroller, is connected with described sensor, and for when receiving the request message from RFID reader, according to described request message, start RFID data transmission, the described RFID data gathered by described sensor is transferred to RFID reader; And for when not receiving the request message from RFID reader within a predetermined period of time, automatically start RFID data transmission, the described RFID data gathered by described sensor is transferred to RFID reader;
Label antenna, is connected with described label microcontroller, for carrying out radio communication with RFID reader;
Tag-powered module, is connected with described sensor and described label microcontroller, for powering to described sensor and described label microcontroller.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a method for radio frequency identification data transmission, it is characterized in that, described method comprises:
Judge whether the hardware platform of RFID label tag receives the request message from RFID reader within a predetermined period of time, the described request message polling message that to be RFID reader send to the hardware platform of RFID label tag;
When the hardware platform of radio frequency identification (RFID) labels receives the request message from radio frequency discrimination RFID reader, according to described request message, start the transmission of radio frequency discrimination RFID data, RFID data is transferred to RFID reader by the hardware platform of RFID label tag;
When the hardware platform of RFID label tag does not receive the request message from RFID reader within a predetermined period of time, the hardware platform of RFID label tag starts RFID data transmission automatically, and RFID data is transferred to RFID reader;
Wherein, described according to described request message, the step starting the transmission of radio frequency discrimination RFID data specifically comprises: according to described request message, wake the microcontroller in the hardware platform of described RFID label tag up; Sensor in the hardware platform of RFID label tag described in described microprocessor controls carries out the collection of RFID data; After described RFID data collection completes, close described sensor;
The step that the hardware platform of described RFID label tag starts RFID data transmission automatically specifically comprises: automatically wake the microcontroller in the hardware platform of described RFID label tag up; Sensor in the hardware platform of RFID label tag described in described microprocessor controls carries out the collection of RFID data; After described RFID data collection completes, close described sensor.
2. method according to claim 1, is characterized in that, after RFID data is transferred to the step of RFID reader by the hardware platform of described RFID label tag, described method also comprises:
After described RFID data is transmitted, described microcontroller enters into dormant state.
3. method according to claim 1, is characterized in that, described RFID data is transferred to the step of RFID reader after, described method also comprises:
After described RFID data is transmitted, described microcontroller enters into dormant state, and starts next round timing.
4. method according to claim 1, is characterized in that, described method also comprises:
Pre-set the mode of operation of described RFID reader, described mode of operation comprises: active request pattern and passive receiving mode, wherein
When the mode of operation of described RFID reader is active request pattern, in described predetermined amount of time, described RFID reader sends described request message to the hardware platform of described RFID label tag.
5. method according to claim 4, is characterized in that, described method also comprises:
When the mode of operation of described RFID reader is passive receiving mode, the RFID data that the hardware platform that described RFID reader circulation receives described RFID label tag sends.
6. the system of a radio frequency identification data transmission, comprise: the hardware platform of RFID label tag and RFID reader, it is characterized in that, the hardware platform of described RFID label tag, for judging the request message whether received within a predetermined period of time from RFID reader, the described request message polling message that to be RFID reader send to the hardware platform of RFID label tag; When receiving the request message from RFID reader, according to described request message, wake the microcontroller in the hardware platform of described RFID label tag up; Sensor in the hardware platform of RFID label tag described in described microprocessor controls carries out the collection of RFID data; RFID data is transferred to RFID reader, after described RFID data collection completes, closes described sensor; And, when not receiving the request message from RFID reader within a predetermined period of time, automatically wake the microcontroller in the hardware platform of described RFID label tag up; Sensor in the hardware platform of RFID label tag described in described microprocessor controls carries out the collection of RFID data; RFID data is transferred to RFID reader; After described RFID data collection completes, close described sensor.
7. system according to claim 6, is characterized in that, the hardware platform of described RFID label tag comprises:
Sensor, for gathering RFID data;
Label microcontroller, be connected with described sensor, for judging the request message whether received within a predetermined period of time from RFID reader, the described request message polling message that to be RFID reader send to the hardware platform of RFID label tag, when receiving the request message from RFID reader, according to described request message, start RFID data transmission, the described RFID data gathered by described sensor is transferred to RFID reader; And for when not receiving the request message from RFID reader within a predetermined period of time, automatically start RFID data transmission, the described RFID data gathered by described sensor is transferred to RFID reader;
Label antenna, is connected with described label microcontroller, for carrying out radio communication with RFID reader;
Tag-powered module, is connected with described sensor and described label microcontroller, for powering to described sensor and described label microcontroller.
8. system according to claim 6, is characterized in that, described RFID reader comprises:
Reader antenna, for carrying out radio communication with the hardware platform of described RFID label tag;
Reader microcontroller, be connected with described reader antenna, for pre-setting the mode of operation of described RFID reader, described mode of operation comprises: active request pattern and passive receiving mode, when the mode of operation of described RFID reader is active request pattern, in described predetermined amount of time, the hardware platform to described RFID label tag sends described request message; When the mode of operation of described RFID reader is passive receiving mode, the RFID data that the hardware platform that circulation receives described RFID label tag sends;
External communication interface, is connected with described reader microcontroller, forwards described RFID data for external device;
Reader supply module, is connected with described reader antenna, described reader microcontroller and external communication interface, for powering to described reader antenna, described reader microcontroller and described external communication interface.
9. a hardware platform for RFID label tag, is characterized in that, comprising:
Sensor, for gathering RFID data;
Label microcontroller, be connected with described sensor, for judging the request message whether received within a predetermined period of time from RFID reader, the described request message polling message that to be RFID reader send to the hardware platform of RFID label tag, when receiving the request message from RFID reader, according to described request message, wake the microcontroller in the hardware platform of described RFID label tag up; Sensor in the hardware platform of RFID label tag described in described microprocessor controls carries out the collection of RFID data, and the described RFID data gathered by described sensor is transferred to RFID reader, after described RFID data collection completes, closes described sensor; And, for when not receiving the request message from RFID reader within a predetermined period of time, automatically wake the microcontroller in the hardware platform of described RFID label tag up; Sensor in the hardware platform of RFID label tag described in described microprocessor controls carries out the collection of RFID data, and the described RFID data gathered by described sensor is transferred to RFID reader; After described RFID data collection completes, close described sensor;
Label antenna, is connected with described label microcontroller, for carrying out radio communication with RFID reader;
Tag-powered module, is connected with described sensor and described label microcontroller, for powering to described sensor and described label microcontroller.
Priority Applications (1)
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| CN102982357B (en) * | 2012-11-23 | 2016-05-25 | 深圳市远望谷信息技术股份有限公司 | Radio frequency read/write connects method and the device of external equipment |
| CN106153113B (en) * | 2016-07-26 | 2019-04-02 | 成都布阿泽科技有限公司 | Sensor module for structural body health detection |
| CN106153112B (en) * | 2016-07-26 | 2019-03-05 | 成都布阿泽科技有限公司 | Structural body health sensing module based on Principles of Radar |
| CN106413061B (en) * | 2016-10-25 | 2019-12-27 | 罗伟坚 | Narrow-band Internet of things communication system based on honeycomb |
| CN106817305B (en) * | 2016-12-30 | 2020-03-10 | Oppo广东移动通信有限公司 | Forwarding control method and access equipment |
| CN111065262A (en) * | 2017-06-07 | 2020-04-24 | 赫博科技公司 | Method and apparatus for automatic hydroponic culture |
| CN107230355A (en) * | 2017-07-26 | 2017-10-03 | 青岛特来电新能源有限公司 | A kind of vehicle identifier, Vehicular charging bow and vehicle identification method |
| CN107832816A (en) * | 2017-11-20 | 2018-03-23 | 福建星榕基信息科技有限责任公司 | A kind of RFID management system and method based on LoRa communications |
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