CN111566657B - Communication control method, circuit and asset management system - Google Patents
Communication control method, circuit and asset management system Download PDFInfo
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- CN111566657B CN111566657B CN201980007122.4A CN201980007122A CN111566657B CN 111566657 B CN111566657 B CN 111566657B CN 201980007122 A CN201980007122 A CN 201980007122A CN 111566657 B CN111566657 B CN 111566657B
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- electronic tag
- asset
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- communication
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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
- G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
- G06K7/0021—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers for reading/sensing record carriers having surface contacts
- G06K7/0026—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers for reading/sensing record carriers having surface contacts the galvanic contacts of the connector adapted for landing on the contacts of the card upon card insertion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Near-Field Transmission Systems (AREA)
Abstract
The invention discloses a communication control method, a circuit and an asset management system, which are used for the communication between an asset bar and an electronic tag, and comprise the following steps: the electronic tag is electrically connected with the asset strip through the awakening line to form a closed loop so as to trigger generation of an awakening signal, awaken the asset strip and simultaneously connect the awakening line to the ground; the asset strip supplies power to the electronic tag through a communication line and transmits and receives signals with the electronic tag. By implementing the invention, the asset strip and the electronic tag can be efficiently and stably communicated on the basis of only needing to wake up two lines of a line and a communication line, having simple circuit structure and low cost.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a communications control method, a circuit, and an asset management system.
Background
Currently, in U-bit asset management, wireless communication costs are high and unstable, and wired communication is generally adopted. The wired communication mainly comprises serial communication and parallel communication, the parallel communication can realize synchronous transmission of different data bits between different ports, the transmission efficiency is high, but the cost is also high, and therefore, the serial communication is generally adopted.
There are two ways of conventional serial communication: asynchronous communications and synchronous communications. The transceiver end of the serial asynchronous communication needs three wires: a power line, a transmission line and a ground line. Four wires are required for serial synchronous communication: a power line, a transmission line, a clock line and a ground line. The serial asynchronous communication has no clock line, so that the clock signals of the sending end and the receiving end are not uniform, the requirement on the clock signal of the receiving end is higher, and the transmission efficiency is low. The serial synchronous communication can realize one-time transmission of a plurality of data due to the connection of the clock lines, and has high transmission efficiency and high accuracy, but has more IO lines, so that the structure is complex and the cost is high.
Disclosure of Invention
The invention aims to solve the technical problems of low transmission efficiency of serial asynchronous communication, more IO lines of serial synchronous communication, complex structure and higher cost in the prior art, and provides a communication control method, a circuit and an asset management system.
The technical scheme adopted for solving the technical problems is as follows: a communication control method is constructed for the communication between an asset bar and an electronic tag, comprising the following steps:
the asset strip monitors whether the electronic tag is accessed;
when the electronic tag is connected, the electronic tag is electrically connected with the asset strip through a wake-up line to form a closed loop so as to trigger generation of a wake-up signal, wake up the asset strip and simultaneously ground the wake-up line;
the asset bar supplies power to the electronic tag through a communication line, and the asset bar transmits a synchronous data signal for the electronic tag to synchronize through the communication line, and the electronic tag transmits a response data signal to the asset bar according to the synchronous data signal and through the communication line, and the process is circulated.
The invention also constructs a communication control method for the communication between the asset bar and the electronic tag, which comprises the following steps:
the asset strip monitors whether the electronic tag is accessed;
when the electronic tag is accessed, the asset bar triggers to generate a wake-up signal to wake up the asset bar;
the asset strip supplies power for the electronic tag through a communication line and transmits and receives signals with the electronic tag.
Preferably, in the communication control method of the present invention, when the electronic tag is accessed, the step of triggering the asset bar to generate a wake-up signal and waking up the asset bar includes:
and the electronic tag is electrically connected with the asset strip through a wake-up line to form a closed loop so as to trigger and generate a wake-up signal to wake up the asset strip.
Preferably, in the communication control method of the present invention, the wake-up line includes a duplex triggering pin arranged on the electronic tag, and a low-power-consumption power source anode and a low-power-consumption power source cathode arranged on the asset strip;
when the electronic tag is connected, the duplex triggering spring pins are respectively electrically connected with the positive electrode and the negative electrode of the low-power consumption power supply to form a closed loop, so that the wake-up signal is generated.
Preferably, in the communication control method of the present invention, the step of the asset strip supplying power to the electronic tag and transmitting and receiving signals to and from the electronic tag through a communication line includes:
waking up the asset bar according to the wake-up signal and simultaneously grounding the wake-up line;
the asset bar supplies power to the electronic tag through the communication line, and the asset bar transmits a synchronous data signal for the electronic tag to synchronize through the communication line, and the electronic tag transmits a response data signal to the asset bar according to the synchronous data signal and through the communication line, and the process is circulated.
Preferably, in the communication control method of the present invention, in the step of supplying power to the electronic tag and transmitting and receiving signals to and from the electronic tag by the asset strip through a communication line, the method further includes:
and after the communication is finished, the asset strip sends an ending signal to the electronic tag through the communication line, and the electronic tag is off-machine.
Preferably, in the communication control method of the present invention, the synchronous data signal is a byte data signal, the response data signal is a serial number of the same byte as the byte data signal, and the end signal output by the asset bar is a low level signal.
The invention also constructs a communication control circuit for the communication between the asset bar and the electronic tag, comprising:
a wake-up line, configured to trigger the asset bar to generate a wake-up signal when the asset bar is connected to the electronic tag, and wake up the asset bar;
and the communication line is used for supplying power to the electronic tag through the communication line by the asset strip and transmitting and receiving signals with the electronic tag.
Preferably, in the communication control circuit of the present invention, the wake-up line is further used for the electronic tag to form a closed loop by electrically connecting the wake-up line with the asset bar, so as to trigger to generate a wake-up signal, and wake up the asset bar.
Preferably, in the communication control circuit of the present invention, the wake-up line includes a duplex trigger pin provided on the electronic tag, and a low-power-consumption power source positive and negative electrode provided on the asset strip;
when the electronic tag is connected, the duplex triggering spring pins are respectively electrically connected with the positive electrode and the negative electrode of the low-power consumption power supply to form a closed loop, so that the wake-up signal is generated.
Preferably, in the communication control circuit according to the present invention, the wake-up line is further used for simultaneously grounding the wake-up line when waking up the asset bar according to the wake-up signal.
Preferably, in the communication control circuit of the present invention, the communication line is further used for the asset strip to supply power to the electronic tag through the communication line, and the asset strip transmits a synchronization data signal for synchronization of the electronic tag through the communication line, and the electronic tag transmits a response data signal to the asset strip according to the synchronization data signal and through the communication line, and the process is circulated.
Preferably, in the communication control circuit of the present invention, the communication line is further used for ending communication, and the asset bar sends an end signal to the electronic tag through the communication line, and the electronic tag is off-machine.
Preferably, in the communication control circuit of the present invention, the electronic tag includes: the wireless communication device comprises a signal receiving and transmitting module for receiving and transmitting signals with the communication line, a power supply acquisition module for acquiring power supply from the communication line, and a microprocessor electrically connected with the signal receiving and transmitting module and the power supply acquisition module.
Preferably, in the communication control circuit of the present invention, the microprocessor is provided with a power port electrically connected to the power acquisition module, a first ground port electrically connected to the wake-up line, and a first input port and a first output port electrically connected to the signal transceiver module.
Preferably, in the communication control circuit of the present invention, the asset bar includes a main controller; the main controller is provided with a second grounding port electrically connected with the wake-up line, and a second input port and a second output port electrically connected with the communication line.
Preferably, in the communication control circuit of the present invention, the asset strip supplies power to the electronic tag and transmits and receives signals to and from the electronic tag through the communication line, and further includes:
the second output port on the main controller sends a synchronous data signal for synchronizing the electronic tag through the communication line, the signal receiving and transmitting module receives the synchronous data signal and transmits the synchronous data signal to the first input port on the microprocessor, the first output port on the microprocessor outputs a response data signal through the signal receiving and transmitting module according to the synchronous data signal and transmits the response data signal to the second input port on the main controller through the communication line, and the process is circulated;
and after the communication is finished, a second output port on the main controller sends an output end signal through the communication line, the signal receiving and transmitting module receives the end signal and transmits the end signal to a first input port on the microprocessor, and the electronic label is taken off.
Preferably, in the communication control circuit of the present invention, the synchronous data signal is a byte data signal, the response data signal is a serial number of the same byte as the byte data signal, and the end signal output by the asset bar is a low level signal.
Preferably, in the communication control circuit of the present invention, the asset strip supplies power to the electronic tag through the communication line, further comprising:
the asset strip is connected with a power supply, and the power supply acquisition module of the electronic tag acquires the power supply through the communication line and transmits the power supply to the power supply port of the microprocessor.
The invention also constructs an asset management system which comprises at least one electronic tag, an asset bar, a U-bit manager and at least one communication control circuit, wherein the U-bit manager is used for collecting data of the asset bar.
When the electronic tag is connected, the electronic tag is electrically connected with the asset strip through the awakening line to form a closed loop so as to trigger and generate an awakening signal, awakening the asset strip and simultaneously grounding the awakening line; the asset strip supplies power to the electronic tag through the communication line, and the asset strip transmits a synchronous data signal for electronic tag synchronization through the communication line, and the electronic tag transmits a response data signal to the asset strip according to the synchronous data signal and through the communication line. The high-efficiency and stable communication between the asset strip and the electronic tag is realized on the basis that only two lines, namely a wake-up line and a communication line, are needed, the circuit structure is simple, and the cost is low.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of an electronic tag and asset strip according to the present invention;
FIG. 2 is a schematic diagram of a second embodiment of an electronic tag and asset strip according to the present invention;
FIG. 3 is a schematic diagram of the structure of a conductive pad in an asset bar according to the present invention;
FIG. 4 is a block diagram of an asset management system of the present invention;
FIG. 5 is a flow chart of a communication control method according to an embodiment of the invention;
FIG. 6 is a flow chart of a communication control method according to an embodiment of the present invention;
fig. 7 is a block diagram of a communication control circuit of the present invention.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
Fig. 1 and 2 are a schematic structural diagram of the electronic tag and the asset strip, respectively, referring to fig. 1 and 2, the present invention constructs an electronic tag, which may be used for equipment asset management, and includes a tag body, and a tag connecting band 5 having one end connected to the tag body and the other end connected to equipment, and further, the tag connecting band 5 is a tag silicon tape. The tag body comprises a housing 1, a fixing piece 11 for fixedly connecting the tag silica gel tape 5 is arranged inside the housing 1, and the tag silica gel tape 5 can be selected as a fixing column 11, and correspondingly, a through hole for being matched with the fixing column 11 is formed in the tag silica gel tape 5. In other embodiments, the tag silicone tape 5 may be fixed on the housing 1 of the tag body by attaching or fastening, which will not be described herein.
The tag body further includes: a tag assembly 2 disposed in the housing 1, and a connection assembly 4 for connecting the electronic tag to the asset strip and for communicating with the asset strip; wherein the tag assembly 2 includes a conductive trigger 22 that cooperates with the asset strip, the tag assembly 2 triggering the generation of a wake-up signal upon contact or separation of the conductive trigger 22 with the asset strip.
The tag assembly 2 further comprises: a tag circuit board 21 electrically connected to the conductive trigger 22, the tag circuit board 21 being connected in conductive communication with the asset strip through the conductive trigger 22 and the connection assembly 4.
The conductive trigger piece 22 is a double contact spring pin with the tail end extending out of the shell 1, forms a closed loop when the double contact spring pin 22 contacts with the asset strip to trigger and generate a wake-up signal, and also triggers and generates the wake-up signal when the double contact spring pin 22 is separated from the asset strip. Specifically, a fixing connector 23 for fixing the double contact pin 22 is also provided on the tag circuit board 21. The double contact spring needle 22 contacts with an asset strip, the asset strip forms a closed loop with a first spring needle of the double contact spring needle 22, the tag circuit board 21 and a second spring needle of the double contact spring needle 22, or the double contact spring needle 22 is separated from the asset strip, the asset strip is disconnected with the closed loop formed by the first spring needle of the double contact spring needle 22, the tag circuit board 21 and the second spring needle of the double contact spring needle 22, and the tag circuit board 21 or the asset strip is triggered to generate a wake-up signal to wake up the U-bit manager, the U-bit manager supplies power to the asset strip, the asset strip which is always in a low-power consumption state is wake-up, the U-bit manager acquires each U-bit data from the asset strip, and the state information of whether each U bit is occupied or not is updated is included. Specifically, the wake-up signal can be transmitted to the U-bit manager in a wired or wireless manner to wake up the U-bit manager.
When the tag assembly 2, the connecting assembly 4 and the asset strip form a closed loop, the connecting assembly 4 is used for supplying power to the electronic tag through the connecting assembly 4 and receiving and transmitting signals with the electronic tag, and the double-contact spring pin 22 is used for grounding. Specifically, the asset strip supplies power to the electronic tag through the connecting component 4 to complete the initialization work of the electronic tag, the asset strip transmits a synchronous data signal for the synchronization of the electronic tag through the connecting component 4, and the electronic tag transmits a response data signal to the asset strip according to the synchronous data signal through the connecting component 4, and the process is circulated;
the asset strip and the electronic tag finish data transmission within a preset time or a data acquisition table exists in the asset strip, the data content on the data acquisition table is acquired and recorded, communication is finished, the asset strip sends a finishing signal to the electronic tag through the connecting component 4, and the electronic tag is started.
The synchronous data signal is a byte data signal, the response data signal is a serial number of the same byte as the byte data signal, the end signal output by the asset bar is a low level signal, and the wake-up signal is a high level signal.
In the process of electrically connecting the electronic tag to the asset strip, firstly, the double-contact spring pin 22 is in contact electrical connection with the asset strip, a closed loop of a first spring pin of the asset strip and the double-contact spring pin 22, the tag circuit board 21 and a second spring pin of the double-contact spring pin 22 is formed to trigger and generate a wake-up signal, and then the connecting component 4 is in contact electrical connection with the asset strip, and a closed loop of the asset strip and the double-contact spring pin 22, the tag circuit board 21 and the connecting component 4 is formed to generate conductive communication connection between the tag component 2 and the asset strip. Accordingly, the separation of the electronic tag from the asset strip is firstly that the connection component 4 is separated from the asset strip, the conductive communication connection is disconnected, and then the separation of the double-contact spring pin 22 from the asset strip triggers the tag circuit board 21 to generate a wake-up signal.
In addition, the connecting component 4 is sleeved on the periphery of the double-contact spring pin 22, and is provided with a through hole for the double-contact spring pin 22 to pass through and one or more fixed connecting parts 41 for being matched and fixed and electrically connected with the tag circuit board (21). Correspondingly, the tag circuit board 21 is also provided with one or more clamping positions 211 for matching and fixedly and electrically connecting with the fixed connection part 41. The attachment assembly 4 is a metal assembly that attaches and secures the tag assembly 2 to the asset strip by mating with the magnet 91 on the asset strip. Further, the connecting component 4 is a bowl-shaped metal component, and an insulating plug 3 is arranged between the double contact spring pin 22 and the connecting component 4.
FIG. 4 is a block diagram of an asset management system of the present invention, and in combination with FIGS. 1, 2 and 4, the present invention further constructs an asset management system comprising an asset bar, a U-bit manager connected to the asset bar for collecting asset bar data, and at least one electronic tag of any one of the above.
The asset strip comprises an asset strip circuit board 7, at least one conductive disc 8 which is arranged on the asset strip circuit board 7 and matched with the conductive trigger piece 2 and the connecting component 4 of each electronic tag, and a wire buckle component 9 which is matched with the connecting component 4 of the electronic tag to connect the electronic tag on the asset strip. The asset strip further comprises an asset strip sleeve 6 sleeved on the periphery of the asset strip circuit board 7, and correspondingly, asset strip plugs 10 sleeved on the two ends of the asset strip circuit board 7 and the asset strip sleeve 6. The wire buckle assembly 9 includes a wire buckle housing 92 and a magnet 91 disposed in the asset strip cover 6 and correspondingly matched with the connecting assembly 4, wherein the magnet 91 is disposed inside the asset strip cover 6 and correspondingly arranged with each conductive disc 8. In this embodiment, the asset bar circuit board 7 is an asset bar flexible PCBA circuit board, and the conductive pads 8 are PCB contact pads.
Fig. 3 is a schematic structural view of a conductive disc in the asset strip according to the present invention, referring to fig. 3, each conductive disc 8 includes at least two sections of separated positive and negative conductive arcs 81 of a low-power supply and at least one conductive ring 82 for communication connection with the electronic tag, the conductive arcs 81 are arranged in a ring shape and respectively correspond to the double-contact pins 22 of the electronic tag, and when the electronic tag is accessed, the double-contact trigger pins 22 are respectively electrically connected with the positive and negative conductive arcs 81 of the low-power supply to form a wake-up circuit, thereby forming a closed loop and generating a wake-up signal; the conductive ring 82 is arranged corresponding to the connecting component 4, including corresponding position and shape arrangement, so as to ensure that the conductive ring 82 is fully contacted with the connecting component. The conductive ring 82 is electrically connected to the connection assembly 4 to form a communication line, and forms a closed loop with the wake-up line.
The asset strip is arranged on one side of the cabinet, each conducting disc 8 and each wire buckle component 9 on the asset strip are arranged corresponding to each U-shaped position, one end of the tag silicon tape 5 is fixedly attached to the IT equipment, the other end of the tag silicon tape is connected to the tag main body, and when the IT equipment is placed in the U-shaped position, the electronic tag is fixedly connected to the asset strip. Specifically, the double contact pin 22 contacts with the positive and negative conductive arcs 81 of the low power consumption power supply on the asset strip, the positive and negative conductive arcs 81 of the low power consumption power supply form a closed loop with the first pin of the double contact pin 22, the tag circuit board 21 and the second pin of the double contact pin 22, the tag circuit board 21 or the asset strip is triggered to generate a wake-up signal, the U-bit manager is awakened to supply power to the asset strip, the asset strip in the low power consumption state is awakened, the U-bit manager acquires each U-bit data from the asset strip, the state of each U-bit is updated, the state information including whether each U-bit is occupied or not is updated, and when each U-bit data includes the electronic tag connected with the conductive disc 8, the identification data transmitted to the conductive disc 8 and the like. The electronic tag transmits data to the asset strip, and is in contact electrical connection with the conductive ring 82 of the asset strip through the connecting component 4, at this time, the double-contact spring pin 22 and the positive and negative conductive arc 81 of the low-power supply are used for grounding, so that a closed loop of the conductive ring 82 and the connecting component 4, the tag circuit board 21, the double-contact spring pin 22 and the positive and negative conductive arc 81 of the low-power supply is formed, and conductive communication connection between the tag component 2 and the asset strip is generated.
When IT equipment is pulled out of the U-bit, the electronic tag is separated from the asset strip, specifically, the double-contact pin 22 is separated from a low-power-consumption power source anode-cathode conductive arc 81 on the asset strip, the asset strip is disconnected from a closed loop formed by a first pin of the double-contact pin 22, the tag circuit board 21 and a second pin of the double-contact pin 22, the tag circuit board 21 or the asset strip is triggered to generate a wake-up signal, a U-bit manager is woken up to supply power to the asset strip, the asset strip which is always in a low-power-consumption state is woken up, the U-bit manager is enabled to acquire each U-bit data from the asset strip, and the state of each U-bit is updated, wherein the state information comprises whether the U-bit is occupied or not and the like is included. The electronic tag is separated from the asset strip, and further comprises a closed loop formed by the asset strip, the duplex contact spring pin 22, the tag circuit board 21 and the connecting component 4, wherein communication connection is disconnected.
The asset strip sets up in data center rack one side, and electronic tags passes through the fixed laminating of label silica gel area on IT equipment, and ITs electronic tags main part is when having IT equipment to put into the U position, connects fixedly on the asset strip. The invention realizes the efficient and stable communication of the tag and the asset strip on the basis of few connecting wires, simple circuit structure and low cost. Fig. 5 is a flowchart of a communication control method according to an embodiment of the present invention, referring to fig. 5, the present invention constructs a communication control method for communication between an asset bar and an electronic tag, including the steps of:
the asset strip monitors whether an electronic tag is connected or not;
when the electronic tag is accessed, the asset bar triggers to generate a wake-up signal to wake up the asset bar;
the asset strip supplies power to the electronic tag through a communication line and transmits and receives signals with the electronic tag.
In a second embodiment, referring to fig. 6, when the electronic tag is accessed, the step of triggering the asset bar to generate a wake-up signal and waking up the asset bar includes:
the asset bar is internally provided with a low-power-consumption power supply, the asset bar is always in a low-power-consumption state, and when the asset bar detects that the electronic tag is connected, the electronic tag is electrically connected with the asset bar through a wake-up line to form a closed loop so as to trigger and generate a wake-up signal, and the asset bar is awakened. The wake-up line comprises a duplex triggering spring pin arranged on the electronic tag and a low-power-consumption power source anode and a low-power-consumption power source cathode arranged on the asset strip, and when the electronic tag is connected, the duplex triggering spring pin is respectively electrically connected with the low-power-consumption power source anode and the low-power-consumption power source cathode to form a closed loop so as to generate a wake-up signal.
The step of supplying power to the electronic tag and receiving and transmitting signals with the electronic tag by the asset strip through a communication line comprises the following steps:
waking up the asset bar according to the wake-up signal, enabling the asset bar to be connected with an external power supply for conduction, and simultaneously grounding the wake-up line;
the asset strip supplies power to the electronic tag through the communication line to complete the initialization work of the electronic tag, the asset strip transmits a synchronous data signal for electronic tag synchronization through the communication line, and the electronic tag transmits a response data signal to the asset strip according to the synchronous data signal and through the communication line, and the process is circulated; wherein the communication line includes a connection assembly 4 disposed on the electronic tag, and a conductive loop 82 disposed on the asset strip. The asset strip forms a closed loop with the electronic tag through the conductive ring 82, the connecting component 4, the tag circuit board 21 and a wake-up line, the wake-up line is grounded, and the asset strip supplies power to and receives and transmits signals with the electronic tag through a communication line formed by the conductive ring 80 and the connecting component 4.
The asset strip and the electronic tag finish data transmission within a preset time or a data acquisition table exists in the asset strip, the data content on the data acquisition table is acquired and recorded, communication is finished, the asset strip sends a finishing signal to the electronic tag through a communication line, and the electronic tag is started. In this embodiment, the communication line serves as both the IO connection line and the power supply positive electrode, and the wake-up line serves as the GND connection line.
The synchronous data signal is a byte data signal, the response data signal is a serial number of the same byte as the byte data signal, the end signal output by the asset bar is a low level signal, and the wake-up signal can be a high level signal.
Accordingly, the present invention also constructs a communication control circuit, fig. 7 is a block diagram of the communication control circuit of the present invention, see fig. 7, for communication of an asset bar with an electronic tag, comprising:
the wake-up line is used for triggering the asset bar to generate a wake-up signal when the asset bar is connected with the electronic tag, and waking up the asset bar;
and the communication line is used for supplying power to the electronic tag through the communication line by the asset strip and transmitting and receiving signals with the electronic tag.
Specifically, the wake-up line is further used for enabling the asset strip to be in a low-power consumption state all the time, when the asset strip detects that the electronic tag is connected, the electronic tag is electrically connected with the asset strip through the wake-up line to form a closed loop so as to trigger generation of a wake-up signal, wake up the asset strip, enable the asset strip to conduct electricity, and enable the wake-up line to be grounded at the same time. The wake-up line comprises a duplex trigger spring pin arranged on the electronic tag and a low-power-consumption power anode and a low-power-consumption power-cathode arranged on the asset strip; when the electronic tag is connected, the duplex triggering spring pins are respectively electrically connected with the positive electrode and the negative electrode of the low-power consumption power supply to form a closed loop so as to generate a wake-up signal.
The communication line is further used for supplying power to the electronic tag by the asset strip through the communication line to complete the initialization work of the electronic tag, the asset strip transmits a synchronous data signal for the synchronization of the electronic tag through the communication line, and the electronic tag transmits a response data signal to the asset strip according to the synchronous data signal and through the communication line to cycle the process. And after the communication is finished, the asset strip sends a finishing signal to the electronic tag through a communication line, and the electronic tag is off-machine.
Wherein, electronic tags includes: the system comprises a signal receiving and transmitting module for receiving and transmitting signals with a communication line, a power supply acquisition module for acquiring power supply from the communication line, and a microprocessor MCU electrically connected with the signal receiving and transmitting module and the power supply acquisition module.
The microprocessor is provided with a power port electrically connected with the power acquisition module, a first grounding port electrically connected with the wake-up line, and a first input port and a first output port electrically connected with the signal receiving and transmitting module.
The asset bar comprises a main controller CPU; the main controller is provided with a second grounding port electrically connected with the wake-up line, and a second input port and a second output port electrically connected with the communication line.
In this embodiment, the communication line serves as both the IO connection line and the power supply positive electrode, and the wake-up line serves as the GND connection line. The asset strip is complete, supplies power to the electronic tag and receives and transmits signals with the electronic tag through a communication line, and further comprises:
the asset strip is connected with an external power supply to conduct electricity, and the power supply acquisition module of the electronic tag acquires power supply through a communication line and transmits the power supply to the power supply port of the microprocessor. The second output port on the main controller sends a synchronous data signal for electronic tag synchronization through a communication line, the signal receiving and transmitting module receives the synchronous data signal and transmits the synchronous data signal to the first input port on the microprocessor, the signal receiving and transmitting module outputs a response data signal according to the first output port on the synchronous data signal microprocessor and transmits the response data signal to the second input port on the main controller through the communication line, and the process is circulated;
and after the communication is finished, a second output port on the main controller sends an output end signal through a communication line, the signal receiving and transmitting module receives the end signal and transmits the end signal to a first input port on the microprocessor, and the electronic label is unloaded.
The synchronous data signal is a byte data signal, the response data signal is a serial number of the same byte as the byte data signal, the end signal output by the asset bar is a low level signal, and the wake-up signal is a high level signal.
In addition, the invention also constructs an asset management system which comprises at least one electronic tag, an asset strip, a U-bit manager for collecting data of the asset strip and at least one communication control circuit of any one of the above.
When the electronic tag is connected, the electronic tag is electrically connected with the asset strip through the awakening line to form a closed loop so as to trigger and generate an awakening signal, awakening the asset strip and simultaneously grounding the awakening line; the asset strip supplies power to the electronic tag through the communication line, and the asset strip transmits a synchronous data signal for electronic tag synchronization through the communication line, and the electronic tag transmits a response data signal to the asset strip according to the synchronous data signal and through the communication line. The high-efficiency and stable communication between the asset strip and the electronic tag is realized on the basis that only two lines, namely a wake-up line and a communication line, are needed, the circuit structure is simple, and the cost is low. Triggering and generating a wake-up signal when the electronic tag is contacted with or separated from the asset strip, waking up the U-bit manager, and polling and updating the U-bit state; when the contact or separation state of the electronic tag and the asset strip is unchanged, the system is in a low-power consumption mode, the U-bit manager is not awakened, and electric quantity is saved. Compared with the original scheme, the method has the advantages of small transmission data volume, intelligent detection and environment-friendly detection.
While the invention has been described with reference to the specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (12)
1. A communication control method for communication between an asset bar and an electronic tag, comprising the steps of:
the asset strip monitors whether the electronic tag is accessed;
when the electronic tag is accessed, the asset bar triggers to generate a wake-up signal to wake up the asset bar;
the asset strip supplies power to the electronic tag through a communication line and transmits and receives signals with the electronic tag;
when the electronic tag is accessed, the asset bar triggers to generate a wake-up signal, and the step of waking up the asset bar comprises the following steps:
when the electronic tag is connected, the electronic tag is electrically connected with the asset strip through a wake-up line to form a closed loop so as to trigger generation of the wake-up signal, wake up the asset strip and simultaneously ground the wake-up line;
the wake-up line comprises a duplex trigger spring pin arranged on the electronic tag and a low-power-consumption power anode and a low-power-consumption power-cathode arranged on the asset strip;
when the electronic tag is connected, the duplex triggering spring pins are respectively electrically connected with the positive electrode and the negative electrode of the low-power consumption power supply to form a closed loop so as to generate the wake-up signal;
the step of supplying power to the electronic tag and receiving and transmitting signals with the electronic tag by the asset strip through a communication line comprises the following steps:
the asset bar supplies power to the electronic tag through the communication line, and the asset bar transmits a synchronous data signal for the electronic tag to synchronize through the communication line, and the electronic tag transmits a response data signal to the asset bar according to the synchronous data signal and through the communication line, and the process is circulated.
2. The communication control method according to claim 1, wherein in the step of the asset strip supplying power to the electronic tag and transmitting and receiving signals to and from the electronic tag through a communication line, further comprising:
and after the communication is finished, the asset strip sends an ending signal to the electronic tag through the communication line, and the electronic tag is off-machine.
3. The communication control method according to claim 2, wherein the synchronization data signal is a byte data signal, the response data signal is a serial number of the same byte as the byte data signal, and the end signal of the asset bar output is a low level signal.
4. A communication control circuit for communicating an asset bar with an electronic tag, comprising:
a wake-up line, configured to trigger the asset bar to generate a wake-up signal when the asset bar is connected to the electronic tag, and wake up the asset bar;
the communication line is used for supplying power to the electronic tag through the communication line and receiving and transmitting signals with the electronic tag through the asset strip;
the electronic tag is electrically connected with the asset strip through the wake-up line to form a closed loop to trigger generation of a wake-up signal when the asset strip is connected with the electronic tag, so that the asset strip is waken up and the wake-up line is grounded at the same time;
the wake-up line comprises a duplex trigger spring pin arranged on the electronic tag and a low-power-consumption power anode and a low-power-consumption power-cathode arranged on the asset strip;
when the electronic tag is connected, the duplex triggering spring pins are respectively electrically connected with the positive electrode and the negative electrode of the low-power consumption power supply to form a closed loop so as to generate the wake-up signal;
the communication line is further configured to power the electronic tag with the asset bar via the communication line, and the asset bar transmits a synchronization data signal for synchronization of the electronic tag via the communication line, and the electronic tag transmits a reply data signal to the asset bar based on the synchronization data signal and via the communication line, cycling the process.
5. The communication control circuit of claim 4, wherein the communication link is further configured to end communication, the asset bar sends an end signal to the electronic tag via the communication link, and the electronic tag is off-machine.
6. The communication control circuit of claim 4, wherein the electronic tag comprises: the wireless communication device comprises a signal receiving and transmitting module for receiving and transmitting signals with the communication line, a power supply acquisition module for acquiring power supply from the communication line, and a microprocessor electrically connected with the signal receiving and transmitting module and the power supply acquisition module.
7. The communication control circuit of claim 6, wherein the microprocessor is provided with a power port electrically connected to the power acquisition module, a first ground port electrically connected to the wake-up line, and a first input port and a first output port electrically connected to the signal transceiver module.
8. The communication control circuit of claim 7, wherein the asset bar comprises a master controller; the main controller is provided with a second grounding port electrically connected with the wake-up line, and a second input port and a second output port electrically connected with the communication line.
9. The communication control circuit of claim 8, wherein the asset bar supplies power to and receives signals from the electronic tag via the communication line, further comprising:
the second output port on the main controller sends a synchronous data signal for synchronizing the electronic tag through the communication line, the signal receiving and transmitting module receives the synchronous data signal and transmits the synchronous data signal to the first input port on the microprocessor, the first output port on the microprocessor outputs a response data signal through the signal receiving and transmitting module according to the synchronous data signal and transmits the response data signal to the second input port on the main controller through the communication line, and the process is circulated;
and after the communication is finished, a second output port on the main controller sends an output end signal through the communication line, the signal receiving and transmitting module receives the end signal and transmits the end signal to a first input port on the microprocessor, and the electronic label is taken off.
10. The communication control circuit according to claim 5 or 9, wherein the synchronization data signal is a byte data signal, the response data signal is a serial number of the same byte as the byte data signal, and the end signal of the asset bar output is a low level signal.
11. The communication control circuit of claim 7, wherein the asset bar powers the electronic tag through the communication line, further comprising:
the asset strip is connected with a power supply, and the power supply acquisition module of the electronic tag acquires the power supply through the communication line and transmits the power supply to the power supply port of the microprocessor.
12. An asset management system comprising at least one electronic tag, an asset strip and a U-bit manager for collecting data from said asset strip, further comprising at least one communication control circuit according to any one of claims 4-11.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/094460 WO2021000274A1 (en) | 2019-07-03 | 2019-07-03 | Communication control method and circuit, and asset management system |
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| CN111566657A CN111566657A (en) | 2020-08-21 |
| CN111566657B true CN111566657B (en) | 2023-07-25 |
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| CN114219059B (en) * | 2021-11-26 | 2023-11-10 | 北京众谊越泰科技有限公司 | Integrated structure and method of intelligent internet of things tag |
| CN114841182A (en) * | 2022-04-21 | 2022-08-02 | 北京众谊越泰科技有限公司 | IT asset position tracking method and system |
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| EP1098283A2 (en) * | 1999-11-02 | 2001-05-09 | Microchip Technology Inc. | Passive signal discriminator for wake-up of low power transponder |
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| US8952816B2 (en) * | 2009-09-03 | 2015-02-10 | USS Technologies, LLC | Article surveillance tag with multiple straps |
| US8723653B2 (en) * | 2010-05-27 | 2014-05-13 | Schneider Electric It Corporation | Asset identification and management method and system |
| CN202306611U (en) * | 2011-09-15 | 2012-07-04 | 魏中海 | Active radio frequency identification (RFID) label and active RFID system for asset management |
| CN104573958A (en) * | 2015-01-07 | 2015-04-29 | 北京卓益达科技有限公司 | Asset positioning method and system |
| CN106203192A (en) * | 2015-04-29 | 2016-12-07 | 刘全 | A kind of assets information harvester |
| CN206133638U (en) * | 2016-08-29 | 2017-04-26 | 苏州千予千愿信息科技有限公司 | Physics can be carried out and RFID label of communication is connected |
| CN106355241B (en) * | 2016-11-15 | 2023-12-05 | 紫光智云(江苏)物联网科技有限公司 | Active electronic tag activated by magnetic control switch |
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| EP1098283A2 (en) * | 1999-11-02 | 2001-05-09 | Microchip Technology Inc. | Passive signal discriminator for wake-up of low power transponder |
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