WO2021000274A1

WO2021000274A1 - Communication control method and circuit, and asset management system

Info

Publication number: WO2021000274A1
Application number: PCT/CN2019/094460
Authority: WO
Inventors: 蔡舵
Original assignee: 深圳市中联创新自控系统有限公司
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2021-01-07
Also published as: CN111566657B; CN111566657A

Abstract

Disclosed are a communication control method and circuit, and an asset management system, which are used for communication between an asset bar and an electronic tag. The method comprises the following steps: an electronic tag being electrically connected to an asset bar by means of a wakeup line to form a closed loop so as to perform triggering in order to generate a wakeup signal to wake up the asset bar and ground the wakeup line at the same time; and the asset bar supplying power to the electronic tag by means of a communication line and performing signal transmission and reception with the electronic tag. By means of implementing the present invention, efficient and stable communication between the asset bar and the electronic tag is realized on the basis of the need to merely wake up the wakeup line and the communication line, a simple circuit structure and a low cost.

Description

Communication control method, circuit and asset management system

Technical field

The present invention relates to the field of communication technology, in particular to a communication control method, circuit and asset management system.

Background technique

At present, in U-bit asset management, wireless communication is costly and unstable, and wired communication is generally used. Wired communication mainly includes serial communication and parallel communication. Parallel communication can realize synchronous transmission of different bits of data between different ports. The transmission efficiency is high, but the cost is also high. Therefore, serial communication is generally used.

There are two ways of traditional serial communication: asynchronous communication and synchronous communication. The transceiver end of serial asynchronous communication needs three wires: a power wire, a transmission wire, and a ground wire. Serial synchronous communication requires four wires: a power wire, a transmission wire, a clock wire, and a ground wire. In serial asynchronous communication, because there is no clock line, the clock signals of the sending end and the receiving end are not uniform, and the requirements for the clock signal of the receiver are relatively high, and the transmission efficiency is low. Serial synchronous communication can realize the transmission of multiple data at one time due to the clock line connection, with high transmission efficiency and high accuracy, but there are more IO lines, resulting in a complex structure and high cost.

technical problem

The technical problem to be solved by the present invention is to provide a communication control method, circuit and assets in view of the low transmission efficiency of serial asynchronous communication in the prior art, more serial synchronous communication IO lines, complex structure, and higher cost. Management system.

Technical solutions

The technical solution adopted by the present invention to solve its technical problems is to construct a communication control method for the communication between the asset strip and the electronic tag, including the following steps:

Monitoring whether the asset strip is connected to the electronic tag;

When the electronic tag is connected, the electronic tag is electrically connected to the asset strip through a wake-up line to form a closed loop to trigger the generation of a wake-up signal, wake up the asset strip and ground the wake-up line at the same time;

The asset strip supplies power to the electronic tag through a communication line, and the asset strip sends a synchronization data signal for synchronization of the electronic tag through the communication line, and the electronic tag passes through the synchronization data signal according to the synchronization data signal. The communication line sends a response data signal to the asset strip, and this process is repeated.

The present invention also constructs a communication control method for the communication between the asset strip and the electronic tag, including the following steps:

Monitoring whether the asset strip is connected to the electronic tag;

When the electronic tag is accessed, the asset strip triggers the generation of a wake-up signal to wake up the asset strip;

The asset strip supplies power to the electronic tag through a communication line and performs signal transmission and reception with the electronic tag.

Preferably, in the communication control method of the present invention, when the electronic tag is accessed, the asset strip triggers the generation of a wake-up signal, and the step of waking up the asset strip includes:

The electronic tag is electrically connected with the asset strip through a wake-up line to form a closed loop to trigger the generation of 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 dual trigger pin set on the electronic tag, and a low-power power supply positive and negative pole set on the asset strip;

When the electronic tag is connected, the dual trigger spring pins are respectively electrically connected with the positive and negative electrodes of the low-power power supply to form a closed loop to generate the wake-up signal.

Preferably, in the communication control method of the present invention, the steps of the asset strip supplying power to the electronic tag through a communication line and transmitting and receiving signals with the electronic tag include:

Wake up the asset strip according to the wake-up signal, and ground the wake-up line at the same time;

The asset strip supplies power to the electronic tag through the communication line, and the asset strip sends a synchronization data signal for the electronic tag synchronization through the communication line, and the electronic tag is based on the synchronization data signal And send a response data signal to the asset strip through the communication line, and this process is repeated.

Preferably, in the communication control method of the present invention, in the steps of the asset strip supplying power to the electronic tag through a communication line and transmitting and receiving signals with the electronic tag, the method further includes:

When the communication ends, the asset strip sends an end signal to the electronic tag through the communication line, and the electronic tag gets off the machine.

Preferably, in the communication control method of the present invention, the synchronization data signal is a byte data signal, the response data signal is a sequence number of the same byte as the byte data signal, and the asset strip outputs The end signal of is a low-level signal.

The present invention also constructs a communication control circuit for communication between asset strips and electronic tags, including:

The wake-up line is used to trigger the generation of a wake-up signal to wake up the asset strip when the asset strip is connected to the electronic tag;

The communication line is used for the asset strip to supply power to the electronic tag through the communication line and to transmit and receive signals with the electronic tag.

Preferably, in the communication control circuit of the present invention, the wake-up line is further used for that the electronic tag is electrically connected to the asset strip through the wake-up line to form a closed loop to trigger the generation of a wake-up signal and wake up all The assets section.

Preferably, in the communication control circuit of the present invention, the wake-up line includes a dual trigger pin set on the electronic tag, and a low-power power supply positive and negative poles set on the asset strip;

Preferably, in the communication control circuit of the present invention, the wake-up line is also used to simultaneously ground the wake-up line when the asset bar is awakened 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 is sent through the communication line A synchronization data signal used for synchronization of the electronic tag. The electronic tag sends a response data signal to the asset strip through the communication line according to the synchronization data signal, and this process is repeated.

Preferably, in the communication control circuit of the present invention, the communication line is also used for the end of the communication, the asset strip sends an end signal to the electronic tag through the communication line, and the electronic tag is dismounted.

Preferably, in the communication control circuit of the present invention, the electronic tag includes: a signal transceiving module for transmitting and receiving signals with the communication line, a power obtaining module for obtaining power from the communication line, and A microprocessor electrically connected to the signal transceiving module and the power 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 The first input port and the first output port electrically connected to the signal transceiving 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 ground port that is electrically connected to the wake-up line, and is connected to the communication line The second input port and the second output port are electrically connected.

Preferably, in the communication control circuit of the present invention, the asset strip supplies power to the electronic tag through the communication line and performs signal transmission and reception with the electronic tag, further comprising:

The second output port on the main controller sends a synchronization data signal for the electronic tag synchronization through the communication line, and the signal transceiver module receives the synchronization data signal and transmits the synchronization data signal to According to the first input port on the microprocessor, the first output port on the microprocessor outputs a response data signal through the signal transceiving module according to the synchronization data signal, and transmits the response data signal through the communication line The second input port on the main controller loops this process;

When the communication ends, the second output port on the main controller sends an output end signal through the communication line, the signal transceiver module receives the end signal, and transmits the end signal to the microprocessor The first input port, the electronic tag is off the machine.

Preferably, in the communication control circuit of the present invention, 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 asset strip outputs The end signal of 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 to a power source, and the power acquisition module of the electronic tag acquires power through the communication line and transmits the power to the power port of the microprocessor.

The present invention also constructs an asset management system, which includes at least one electronic tag, an asset strip and a U-bit manager for collecting the asset strip data, and also includes at least one communication control circuit as described in any one of the above.

Beneficial effect

In the present invention, when 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 to trigger the generation of a wake-up signal, wake the asset strip and ground the wake-up line at the same time; the asset strip supplies power to the electronic tag through the communication line, In addition, the asset strip sends a synchronization data signal for electronic tag synchronization through the communication line, and the electronic tag sends a response data signal to the asset strip via the communication line according to the synchronization data signal. On the basis of only the wake-up line and the communication line, the circuit structure is simple, and the cost is low, efficient and stable communication between the asset strip and the electronic tag is realized.

Description of the drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments. In the accompanying drawings:

Fig. 1 is a structural diagram 1 of the electronic tag and asset strip of the present invention;

Figure 2 is the second structural diagram of the electronic tag and asset strip of the present invention;

Figure 3 is a schematic diagram of the structure of the conductive plate in the asset strip of the present invention;

Figure 4 is a block diagram of the asset management system of the present invention;

FIG. 5 is a flowchart of a communication control method according to an embodiment of the present invention;

Fig. 6 is a flowchart of a communication control method according to the second embodiment of the present invention;

Fig. 7 is a block diagram of the communication control circuit of the present invention.

Embodiments of the invention

In order to have a clearer understanding of the technical features, objectives and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

Figure 1 and Figure 2 are the first and second structural diagrams of the asset strip and the asset strip respectively. See Figure 1 and Figure 2. The present invention constructs an electronic label that can be used for equipment asset management, including a label body and one end The label connection tape 5 is connected to the label body and the other end is connected to the device, and further, the label connection tape 5 is a label silicone tape. The label main body includes a housing 1. A fixing member 11 for fixing and connecting the label silicone tape 5 is arranged inside the housing 1, and can be optionally a fixed post 11. Accordingly, the label silicone tape 5 is provided with a fixing post 11 Of through holes. In other embodiments, the label silicone tape 5 can be fixed on the housing 1 of the label main body by means of lamination or snap fixing, which will not be repeated here.

The tag main body also includes: a tag assembly 2 arranged in the housing 1 and a connection assembly 4 for connecting the electronic tag to the asset strip and communicating with the asset strip; wherein the tag assembly 2 includes a conductive component that cooperates with the asset strip. The trigger 22 and the tag assembly 2 trigger the generation of a wake-up signal according to the contact or separation between the conductive trigger 22 and the asset strip.

The tag assembly 2 further includes a tag circuit board 21 electrically connected to the conductive trigger 22, and the tag circuit board 21 is electrically connected to the asset strip through the conductive trigger 22 and the connection assembly 4.

The conductive trigger 22 is a double contact spring pin extending from the shell 1 at the end. When the double contact spring pin 22 contacts the asset strip, a closed loop is formed to trigger a wake-up signal, and the double contact spring pin The wake-up signal is also triggered when 22 is separated from the asset bar. Specifically, the label circuit board 21 is also provided with a fixed connector 23 for fixing the double contact spring pin 22. The double contact spring pin 22 is in contact with the asset strip, and the asset strip forms a closed loop with the first spring pin of the double contact spring pin 22, the label circuit board 21, and the second spring pin of the double contact spring pin 22, or The double contact spring pin 22 is separated from the asset strip, and the closed loop formed by the asset strip and the first spring pin of the double contact spring pin 22, the label circuit board 21, and the second spring pin of the double contact spring pin 22 is broken. On, both trigger the tag circuit board 21 or the asset bar to generate a wake-up signal, wake up the U-bit manager, the U-bit manager provides power to the asset bar, wakes up the asset bar that has been in a low power consumption state, and makes the U-bit manager from the asset bar Get each U bit data, update the status of each U bit, including status information such as whether each U bit is occupied. 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 and the connecting assembly 4 form a closed loop with the asset strip, the connecting assembly 4 is used for the asset strip to supply power to the electronic tag and transmit and receive signals with the electronic tag through the connecting assembly 4, and the double contact spring pin 22 is used for grounding. Specifically, the asset strip supplies power to the electronic tag through the connection component 4 to complete the initialization of the electronic tag, and the asset strip sends a synchronization data signal for electronic tag synchronization through the connection component 4, and the electronic tag sends the electronic tag through the connection component 4 according to the synchronization data signal. Respond to the data signal to the asset bar and loop this process;

The asset strip and the electronic tag complete the data transmission within the preset time or there is a data acquisition table in the asset strip. The data content on the data acquisition table has been acquired and recorded, then the communication ends, and the asset strip is sent through the connection component 4 to end The signal is sent to the electronic label, and the electronic label is dismounted.

Among them, the synchronization data signal is a byte data signal, the response data signal is the sequence 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, first, the double contact spring pin 22 is electrically connected to the asset strip, forming the first spring pin of the asset strip and the double contact spring pin 22, the label circuit board 21, The closed loop of the second spring pin of the double contact spring pin 22 is triggered to generate a wake-up signal, and then the connecting assembly 4 is electrically connected to the asset strip to form the asset strip, the double contact spring pin 22, and the label circuit board 21, The closed loop of the connecting assembly 4 produces a conductive communication connection between the tag assembly 2 and the asset strip. Correspondingly, the separation of the electronic tag from the asset strip is first the separation of the connection assembly 4 from the asset strip, the disconnection of the conductive communication connection, and the separation of the double contact spring pin 22 from the asset strip, which triggers the label circuit board 21 Generate a wake-up signal.

In addition, the connecting assembly 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 used for cooperating, fixing and electrically connecting with the label circuit board (21). Or multiple fixed connection parts 41. Correspondingly, the label circuit board 21 is also provided with one or more clamping positions 211 for cooperating and fixing the electric connection with the fixed connection portion 41. The connecting component 4 is a metal component, and the tag component 2 is connected and fixed on the asset strip by cooperating with the magnet 91 on the asset strip. Further, the connecting assembly 4 is a bowl-mounted metal assembly, and an insulating plug 3 is also provided between the double contact spring pin 22 and the connecting assembly 4.

Fig. 4 is a block diagram of the asset management system of the present invention. In combination with Fig. 1, Fig. 2 and Fig. 4, the present invention also constructs an asset management system, including an asset bar and a U-bit management for collecting asset bar data connected to the asset bar The device also includes at least one electronic tag of any of the above.

The asset strip includes an asset strip circuit board 7, at least one conductive plate 8 that is arranged on the asset strip circuit board 7 to cooperate with the conductive trigger 2 and the connection assembly 4 of each electronic tag, and the connection assembly 4 of the electronic tag. The electronic tag is connected to the line buckle assembly 9 on the asset strip. The asset strip also includes an asset strip sleeve 6 sleeved on the periphery of the asset strip circuit board 7, and correspondingly, asset strip plugs 10 sleeved on both ends of the fixed asset strip circuit board 7 and the asset strip sleeve 6. Wherein, the wire buckle assembly 9 includes a wire buckle housing 92, and a magnet 91 provided in the asset strip cover 6 corresponding to the connection assembly 4, and the magnet 91 is provided inside the asset strip cover 6 and is connected to each conductive plate 8 Corresponding settings. In this embodiment, the asset strip circuit board 7 is an asset strip flexible PCBA circuit board, and the conductive plate 8 is a PCB contact plate.

Fig. 3 is a schematic diagram of the structure of the conductive plate in the asset strip of the present invention. Referring to Fig. 3, each conductive plate 8 includes at least two sections of separate low-power power positive and negative conductive arcs 81 and at least one for contact with the electronic The conductive ring 82 for the communication connection of the tag, and the conductive arc 81 are arranged in a circular ring shape, respectively corresponding to the double contact spring pins 22 of the electronic tag. When the electronic tag is connected, the double trigger spring pins 22 are respectively connected with the low power The positive and negative conductive arcs 81 of the power consumption are electrically connected to form a wake-up circuit to form a closed loop and generate a wake-up signal; the conductive ring 82 is set corresponding to the connection assembly 4, including corresponding positions and shapes, to ensure that the conductive ring 82 is in full contact with the connection assembly . The conductive ring 82 is electrically connected with the connection assembly 4 to form a communication line, and forms a closed loop with the wake-up line.

Completely, the asset strip is set on one side of the cabinet, and each conductive plate 8 and wire buckle assembly 9 on the asset strip is set corresponding to each U position. One end of the label silicone tape 5 is fixedly attached to the IT equipment, and the other end is connected On the main body of the tag, when IT equipment is put in the U position, the electronic tag is connected and fixed on the asset strip. Specifically, the double contact spring pin 22 is in contact with the positive and negative conductive arc 81 of the low-power power supply on the asset strip, and the low-power power positive and negative conductive arc 81 is in contact with the first spring pin of the double contact spring pin 22. The label circuit board 21 and the second spring pin of the double contact spring pin 22 constitute a closed loop, which triggers the label circuit board 21 or the asset bar to generate a wake-up signal, wake up the U-bit manager, and the U-bit manager powers the asset bar and wakes up The asset bar that has been in a low-power state allows the U-bit manager to obtain each U-bit data from the asset bar, and update the status of each U-bit, including status information such as whether each U-bit is occupied or not. The bit data includes identification data transmitted to the conductive disk 8 when the electronic tag is connected to the conductive disk 8. Among them, its electronic tag transmits data to the asset strip by contacting and electrically connecting with the conductive ring 82 of the asset strip through the connecting assembly 4. At this time, the double contact spring pin 22 is used for the positive and negative conductive arc 81 of the low-power power supply. When grounded, a closed loop between the conductive ring 82 and the connection assembly 4, the label circuit board 21, the double contact spring pin 22, and the low-power power supply positive and negative conductive arc 81 is formed to generate a conductive communication connection between the label assembly 2 and the asset strip. .

When IT equipment is removed from the U position, the electronic tag is separated from the asset strip. Specifically, the double contact spring pin 22 is separated from the low-power power supply positive and negative conductive arc 81 on the asset strip, and the asset strip is separated from the double The closed loop formed by the first spring pin of the contact spring pin 22, the label circuit board 21, and the second spring pin of the double contact spring pin 22 is disconnected, and the label circuit board 21 or the asset strip is triggered to generate a wake-up signal to wake up U The U-bit manager, the U-bit manager supplies power to the asset bar, wakes up the asset bar that has been in a low-power state, and makes the U-bit manager obtain each U-bit data from the asset bar, and update the status of each U-bit, including every Status information such as whether a U bit is occupied or not. Wherein, the electronic tag is separated from the asset strip, and also includes that the closed loop formed by the asset strip and the double contact spring pin 22, the label circuit board 21, and the connection assembly 4 is disconnected, and the communication connection is disconnected.

The asset strip is set on the side of the data center cabinet, and the electronic label is fixed and attached to the IT equipment by the label silicone tape. The electronic label body is connected and fixed on the asset strip when the IT equipment is placed in the U position. The invention realizes efficient and stable communication between the tag and the asset strip on the basis of few connecting lines, simple circuit structure and low cost. Fig. 5 is a flowchart of a communication control method according to Embodiment 1 of the present invention. Referring to Fig. 5, the present invention constructs a communication control method for the communication between an asset strip and an electronic tag, including the following steps:

Whether the asset strip is connected to the electronic tag;

When the electronic tag is connected, the asset bar triggers a wake-up signal to wake up the asset bar;

The asset strip supplies power to the electronic tag through the communication line and transmits and receives signals with the electronic tag.

In the second embodiment, referring to FIG. 6, when the electronic tag is connected, the asset strip triggers the generation of a wake-up signal, and the step of waking up the asset strip includes:

The asset strip has a built-in low-power power supply, and the asset strip has always been in a low-power state. When the asset strip detects that the electronic tag is connected, the electronic tag is electrically connected to the asset strip through the wake-up line to form a closed loop to trigger the generation of a wake-up signal, wake up Asset strip. Among them, the wake-up line includes the dual trigger pin set on the electronic tag, and the positive and negative poles of the low-power power supply set on the asset strip. When the electronic tag is connected, the dual trigger pin is connected to the low-power power supply. The positive and negative electrodes are electrically connected to form a closed loop, and a wake-up signal is generated.

The steps for the asset strip to supply power to the electronic tag through the communication line and transmit and receive signals with the electronic tag include:

Wake up the asset strip according to the wake-up signal, connect the asset strip to the external power supply, and ground the wake-up line at the same time;

The asset strip supplies power to the electronic tag through the communication line to complete the initialization of the electronic tag, and the asset strip sends a synchronization data signal for electronic tag synchronization through the communication line, and the electronic tag sends a response data signal to the asset strip through the communication line according to the synchronization data signal. , Circulate this process; wherein, the communication line includes the connecting assembly 4 arranged on the electronic tag, and the conductive ring 82 arranged on the asset strip. The asset bar forms a closed loop with the electronic tag through the conductive ring 82, the connection assembly 4, the label circuit board 21, and the wake-up line, and the wake-up line is grounded. The asset bar provides power and communication with the electronic tag through the communication line formed by the conductive ring 80 and the connection assembly 4 The electronic tag performs signal transmission and reception.

The asset strip and the electronic tag complete the data transmission within the preset time or there is a data acquisition table in the asset strip. The data content on the data acquisition table has been acquired and recorded, then the communication ends, and the asset strip sends an end signal through the communication line To the electronic label, the electronic label is dismounted. In this embodiment, the communication line serves as both the IO connection line and the positive pole of the power supply, and the wake-up line serves as the GND connection line.

Among them, the synchronization data signal is a byte data signal, the response data signal is the sequence 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 may be a high-level signal.

Correspondingly, 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 the communication between the asset strip and the electronic tag, including:

The wake-up line is used for when the asset bar is connected to the electronic tag, the asset bar triggers a wake-up signal to wake up the asset bar;

The communication line is used for the asset strip to supply power to the electronic tag through the communication line and to send and receive signals with the electronic tag.

Specifically, the wake-up line is further used to keep the asset strip in a low power consumption state. When the asset strip detects that the electronic tag is connected, the electronic tag is electrically connected to the asset strip through the wake-up line to form a closed loop to trigger the generation of a wake-up signal. The asset bar makes the asset bar conductive and grounds the wake-up line at the same time. Among them, the wake-up line includes the dual trigger pin set on the electronic tag, and the positive and negative poles of the low-power power supply set on the asset strip; when the electronic tag is connected, the dual trigger pin is connected to the low-power power supply. The positive and negative electrodes are electrically connected to form a closed loop, and a wake-up signal is generated.

The communication line is further used for the asset strip to supply power to the electronic tag through the communication line to complete the initialization of the electronic tag, and the asset strip sends a synchronization data signal for electronic tag synchronization through the communication line, and the electronic tag is sent through the communication line according to the synchronization data signal Respond to the data signal to the asset bar and loop this process. When the communication is over, the asset strip sends an end signal to the electronic tag through the communication line, and the electronic tag gets off the machine.

Wherein, the electronic tag includes: a signal transceiving module for signal transceiving with the communication line, a power acquisition module for acquiring power from the communication line, and a microprocessor MCU electrically connected to the signal transceiving module and the power acquisition module.

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 transceiving module.

The asset bar includes a main controller CPU; the main controller is provided with a second ground port electrically connected to the wake-up line, and a second input port and a second output port electrically connected to the communication line.

In this embodiment, the communication line serves as both the IO connection line and the positive pole of the power supply, and the wake-up line serves as the GND connection line. Completely, the asset strip supplies power to the electronic tag through the communication line and transmits and receives signals with the electronic tag, which further includes:

The asset bar is connected to an external power source to conduct electricity, and the power acquisition module of the electronic tag acquires power through the communication line and transmits the power to the power port of the microprocessor. The second output port on the main controller sends the synchronization data signal for electronic label synchronization through the communication line. The signal transceiver module receives the synchronization data signal and transmits the synchronization data signal to the first input port on the microprocessor. The first output port on the data signal microprocessor outputs the response data signal through the signal transceiver module, and transmits it to the second input port on the main controller through the communication line, and this process is repeated;

When the communication is over, the second output port on the main controller sends an output end signal through the communication line, the signal transceiver module receives the end signal, and transmits the end signal to the first input port on the microprocessor, and the electronic label is off the machine.

Wherein, the aforementioned synchronization data signal is a byte data signal, the response data signal is a sequence 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 present invention also constructs an asset management system, which includes at least one electronic tag, an asset strip and a U-bit manager for collecting asset strip data, and also includes at least one communication control circuit for any of the above.

Industrial applicability

In the present invention, when 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 to trigger the generation of a wake-up signal, wake up the asset strip and ground the wake-up line at the same time; the asset strip supplies power to the electronic tag through the communication line, In addition, the asset strip sends a synchronization data signal for electronic tag synchronization through the communication line, and the electronic tag sends a response data signal to the asset strip through the communication line according to the synchronization data signal. On the basis of only the wake-up line and the communication line, the circuit structure is simple, and the cost is low, efficient and stable communication between the asset strip and the electronic tag is realized. In addition, when the electronic tag is in contact with or separated from the asset strip, a wake-up signal is triggered to wake up the U-bit manager, polling to update the U-bit status; when the electronic tag and the asset strip contact or separate status has not changed, the system is in low power consumption mode , Will not wake up the U-bit manager, saving power. Compared with the original solution, it has the advantages of small transmission data, intelligent detection and environmental protection detection.

Sequence Listing Free Content

The present invention is illustrated through specific embodiments, and those skilled in the art should understand that various changes and equivalent substitutions can be made to the present invention without departing from the scope of the present invention. In addition, various modifications can be made to the present invention for specific situations or specific situations without departing from the scope of the present invention. Therefore, the present invention is not limited to the disclosed specific embodiments, but should include all embodiments falling within the scope of the claims of the present invention.

Claims

A communication control method for communication between an asset strip and an electronic tag, which is characterized in that it includes the following steps:

Monitoring whether the asset strip is connected to the electronic tag;

When the electronic tag is connected, the electronic tag is electrically connected to the asset strip through a wake-up line to form a closed loop to trigger the generation of a wake-up signal, wake up the asset strip and ground the wake-up line at the same time;

The asset strip supplies power to the electronic tag through a communication line, and the asset strip sends a synchronization data signal for synchronization of the electronic tag through the communication line, and the electronic tag passes through the synchronization data signal according to the synchronization data signal. The communication line sends a response data signal to the asset strip, and this process is repeated.
A communication control method for communication between an asset strip and an electronic tag, which is characterized in that it includes the following steps:

Monitoring whether the asset strip is connected to the electronic tag;

When the electronic tag is accessed, the asset strip triggers the generation of a wake-up signal to wake up the asset strip;

The asset strip supplies power to the electronic tag through a communication line and performs signal transmission and reception with the electronic tag.
The communication control method according to claim 2, wherein when the electronic tag is accessed, the asset strip triggers the generation of a wake-up signal, and the step of waking up the asset strip includes:

The electronic tag is electrically connected with the asset strip through a wake-up line to form a closed loop to trigger the generation of a wake-up signal to wake up the asset strip.
The communication control method according to claim 3, wherein the wake-up line includes a dual trigger spring pin set on the electronic tag, and a low-power power supply positive and negative poles set on the asset strip. ；

When the electronic tag is connected, the dual trigger spring pins are respectively electrically connected with the positive and negative electrodes of the low-power power supply to form a closed loop to generate the wake-up signal.
The communication control method according to claim 2, wherein the steps of the asset strip supplying power to the electronic tag through a communication line and transmitting and receiving signals with the electronic tag include:

Wake up the asset strip according to the wake-up signal, and ground the wake-up line at the same time;

The asset strip supplies power to the electronic tag through the communication line, and the asset strip sends a synchronization data signal for the electronic tag synchronization through the communication line, and the electronic tag is based on the synchronization data signal And send a response data signal to the asset strip through the communication line, and this process is repeated.
The communication control method according to claim 5, characterized in that, in the step of supplying power to the electronic tag through a communication line by the asset strip and transmitting and receiving signals with the electronic tag, further comprising:

When the communication ends, the asset strip sends an end signal to the electronic tag through the communication line, and the electronic tag gets off the machine.
The communication control method according to claim 6, wherein the synchronization data signal is a byte data signal, the response data signal is a sequence number of the same byte as the byte data signal, and the asset The output end signal is a low-level signal.
A communication control circuit, used for communication between an asset strip and an electronic tag, is characterized in that it includes:

The wake-up line is used to trigger the generation of a wake-up signal to wake up the asset strip when the asset strip is connected to the electronic tag;

The communication line is used for the asset strip to supply power to the electronic tag through the communication line and to transmit and receive signals with the electronic tag.
The communication control circuit according to claim 8, wherein the wake-up line is further used for the electronic tag to be electrically connected to the asset strip through the wake-up line to form a closed loop to trigger the generation of a wake-up signal, The said asset strip.
The communication control circuit according to claim 9, wherein the wake-up line includes a dual trigger spring pin set on the electronic tag, and a low-power power supply positive and negative poles set on the asset strip ；

When the electronic tag is connected, the dual trigger spring pins are respectively electrically connected with the positive and negative electrodes of the low-power power supply to form a closed loop to generate the wake-up signal.
The communication control circuit according to claim 9, wherein the wake-up line is further configured to: when the asset bar is waked up according to the wake-up signal, the wake-up line is simultaneously grounded.
The communication control circuit according to claim 11, wherein 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 passes through the communication line Sending a synchronization data signal for synchronization of the electronic tag, and the electronic tag sends a response data signal to the asset strip through the communication line according to the synchronization data signal, and this process is repeated.
The communication control circuit according to claim 12, wherein the communication line is also used for the end of communication, the asset strip sends an end signal to the electronic tag through the communication line, and the electronic tag is offline .
The communication control circuit according to claim 8, wherein the electronic tag comprises: a signal transceiving module for transmitting and receiving signals with the communication line, and a power acquisition module for obtaining power from the communication line And a microprocessor electrically connected with the signal transceiving module and the power acquisition module.
The communication control circuit according to claim 14, 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 The first input port and the first output port are electrically connected to the signal transceiving module.
The communication control circuit according to claim 15, wherein the asset bar includes a main controller; the main controller is provided with a second ground port electrically connected to the wake-up line and communicates with the The second input port and the second output port are electrically connected by the line.
The communication control circuit according to claim 16, wherein the asset strip supplies power to the electronic tag through the communication line and performs signal transmission and reception with the electronic tag, further comprising:

The second output port on the main controller sends a synchronization data signal for the electronic tag synchronization through the communication line, and the signal transceiver module receives the synchronization data signal and transmits the synchronization data signal to According to the first input port on the microprocessor, the first output port on the microprocessor outputs a response data signal through the signal transceiving module according to the synchronization data signal, and transmits the response data signal through the communication line The second input port on the main controller loops this process;

When the communication ends, the second output port on the main controller sends an output end signal through the communication line, the signal transceiver module receives the end signal, and transmits the end signal to the microprocessor The first input port, the electronic tag is off the machine.
The communication control circuit according to claim 13 or 17, wherein the synchronization data signal is a byte data signal, the response data signal is a sequence number of the same byte as the byte data signal, and the The end signal output by the asset bar is a low-level signal.
The communication control circuit according to claim 15, wherein the asset strip supplies power to the electronic tag through the communication line, further comprising:

The asset strip is connected to a power source, and the power acquisition module of the electronic tag acquires power through the communication line and transmits the power to the power port of the microprocessor.
An asset management system, comprising at least one electronic tag, an asset strip, and a U-bit manager for collecting data of the asset strip, and is characterized in that it also includes at least one communication control system according to any one of claims 8-19 Circuit.

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