CN111566657A - Communication control method, circuit and asset management system - Google Patents
Communication control method, circuit and asset management system Download PDFInfo
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- CN111566657A CN111566657A CN201980007122.4A CN201980007122A CN111566657A CN 111566657 A CN111566657 A CN 111566657A CN 201980007122 A CN201980007122 A CN 201980007122A CN 111566657 A CN111566657 A CN 111566657A
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- electronic tag
- asset strip
- signal
- asset
- wake
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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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Abstract
The invention discloses a communication control method, a circuit and an asset management system, which are used for the communication between an asset strip and an electronic tag, and comprise the following steps: the electronic tag is electrically connected with the asset strip through the wake-up circuit to form a closed loop to trigger and generate a wake-up signal, so that the asset strip is woken up and the wake-up circuit is simultaneously grounded; the asset strip supplies power to the electronic tag and receives and transmits signals with the electronic tag through the communication line. By implementing the invention, the high-efficiency and stable communication between the asset strip and the electronic tag is realized on the basis of only waking up two lines of the line and the communication line, simple circuit structure and low cost.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a communication control method, a circuit, and an asset management system.
Background
At present, in U-bit asset management, wireless communication is high in cost and unstable, and wired communication is generally adopted. The wired communication mainly includes serial communication and parallel communication, and the parallel communication can realize synchronous transmission of different data bits between different ports, so that the transmission efficiency is high, but the cost is high, and therefore, the serial communication is generally adopted.
There are two ways of conventional serial communication: asynchronous communication and synchronous communication. The transceiving end of the serial asynchronous communication needs to have three wires: a power line, a transmission line and a ground wire. Serial synchronous communication requires four wires: a power line, a transmission line, a clock line and a ground line. Due to the fact that the serial asynchronous communication does not have a clock line, clock signals of the sending end and the receiving end are not uniform, the requirement on the clock signals of the receiving end is high, and transmission efficiency is low. Due to the fact that the clock lines are connected in serial synchronous communication, multiple data can be transmitted at one time, transmission efficiency is high, accuracy is high, and the number of IO lines is large, so that the structure is complex and cost is high.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a communication control method, a circuit and an asset management system aiming at the defects of low transmission efficiency of serial asynchronous communication, more serial synchronous communication IO lines, complex structure and higher cost in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a communication control method is constructed for communication between an asset strip and an electronic tag, and comprises 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 circuit to form a closed loop so as to trigger and generate a wake-up signal, and the asset strip is woken up and the wake-up circuit is simultaneously grounded;
the asset strip supplies power to the electronic tag through a communication line, the asset strip sends a synchronous data signal for electronic tag synchronization through the communication line, the electronic tag sends a response data signal to the asset strip through the communication line according to the synchronous data signal, and the process is circulated.
The invention also constructs a communication control method for the communication between the asset strip 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 strip is triggered to generate a wake-up signal to wake up the asset strip;
the asset strip supplies power to the electronic tag and receives and transmits signals with the electronic tag through a communication line.
Preferably, in the communication control method according to the present invention, when the electronic tag is accessed, the asset strip triggers to generate 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 circuit 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 trigger latch arranged on the electronic tag, and a low power consumption power supply positive electrode and a low power consumption power supply negative electrode arranged on the asset strip;
when the electronic tag is connected, the duplex trigger elastic needle is 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 awakening signal is generated.
Preferably, in the communication control method according to the present invention, the step of supplying power to the electronic tag and transmitting and receiving signals to and from the electronic tag through a communication line by the asset strip includes:
awakening the asset strip according to the awakening signal, and grounding the awakening line at the same time;
the asset strip supplies power to the electronic tag through the communication line, the asset strip sends a synchronous 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 synchronous data signal, and the process is circulated.
Preferably, in the communication control method according to the present invention, in the step of supplying power to the electronic tag and transmitting and receiving signals to and from the electronic tag through a communication line by the asset strip, the method further includes:
and when the communication is finished, the asset strip sends a finishing signal to the electronic tag through the communication line, and the electronic tag is taken off the phone.
Preferably, in the communication control method according to 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 strip is a low level signal.
The invention also constructs a communication control circuit for communicating an asset strip with an electronic tag, comprising:
the wake-up circuit is used for triggering the asset strip to generate a wake-up signal to wake up the asset strip when the asset strip is connected to the electronic tag;
and the communication line is used for supplying power to the electronic tag and receiving and transmitting signals with the electronic tag through the asset strip.
Preferably, in the communication control circuit of the present invention, the wake-up circuit is further configured to trigger generation of a wake-up signal by electrically connecting the electronic tag with the asset strip through the wake-up circuit to form a closed loop, so as to wake up the asset strip.
Preferably, in the communication control circuit of the present invention, the wake-up circuit includes a duplex trigger latch arranged on the electronic tag, and a low power consumption power supply positive electrode and a low power consumption power supply negative electrode arranged on the asset strip;
when the electronic tag is connected, the duplex trigger elastic needle is 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 awakening signal is generated.
Preferably, in the communication control circuit of the present invention, the wake-up line is further configured to be grounded simultaneously when the asset strip is woken up according to the wake-up signal.
Preferably, in the communication control circuit of the present invention, the communication line is further configured to enable the asset strip to supply power to the electronic tag through the 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 sends a response data signal to the asset strip through the communication line according to the synchronization data signal, and the process is cycled.
Preferably, in the communication control circuit of the present invention, the communication line is further configured to end communication, the asset strip sends an end signal to the electronic tag through the communication line, and the electronic tag is taken off the phone.
Preferably, in the communication control circuit of the present invention, the electronic tag includes: the communication device comprises a signal transceiving module used for transceiving signals with the communication line, a power supply obtaining module used for obtaining power supply from the communication line, and a microprocessor electrically connected with the signal transceiving module and the power supply obtaining 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 strip includes a master controller; and the main controller is provided with a second grounding port electrically connected with the awakening circuit, and a second input port and a second output port electrically connected with the communication circuit.
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:
a second output port on the main controller sends a synchronous data signal for electronic tag synchronization through the communication line, the signal transceiver module receives the synchronous data signal and transmits the synchronous data signal to a first input port on the microprocessor, the first output port on the microprocessor outputs a response data signal through the signal transceiver module according to the synchronous data signal and transmits the response data signal to a second input port on the main controller through the communication line, and the process is circulated;
and when the communication is finished, the second output port on the main controller sends an output finishing signal through the communication line, the signal transceiver module receives the finishing signal and transmits the finishing signal to the first input port on the microprocessor, and the electronic tag is switched 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 strip 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, and further includes:
the asset bar is connected with the 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 strip, a U bit manager for collecting the data of the asset strip and at least one communication control circuit.
When the electronic tag is connected, the electronic tag is electrically connected with the asset strip through the wake-up circuit to form a closed loop so as to trigger and generate a wake-up signal, wake up the asset strip and simultaneously ground the wake-up circuit; the asset strip supplies power to the electronic tag through the communication line, the asset strip sends a synchronous 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 synchronous data signal. The high-efficiency and stable communication between the asset strip and the electronic tag is realized on the basis of only waking up two lines of the line and the communication line, simple circuit structure and low cost.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a first schematic structural diagram of an electronic tag and an asset strip according to the present invention;
FIG. 2 is a second schematic structural diagram of an electronic tag and an asset strip according to the present invention;
FIG. 3 is a schematic diagram of the configuration of the conductive pads in the asset strip of 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 present invention;
FIG. 6 is a flow chart of a method for controlling communications 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 more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
Fig. 1 and 2 are a first schematic view and a second schematic view of the asset strip and the asset strip, respectively, and referring to fig. 1 and 2, the electronic tag, which can be used for equipment asset management, is constructed according to the present invention, and includes a tag main body, and a tag connecting band 5 having one end connected to the tag main body and the other end connected to the equipment, and further, the tag connecting band 5 is a tag silicone band. The label main part includes casing 1, is provided with the mounting 11 that is used for fixed connection label silica gel area 5 in casing 1 inside, and can select for fixed column 11, correspondingly, is provided with on the label silica gel area 5 to be used for with fixed column 11 complex through-hole. In other embodiments, the label silica gel tape 5 may be fixed on the housing 1 of the label main body in an attaching or fastening manner, which is not described herein again.
The label main body further comprises: a tag assembly 2 disposed in the housing 1 and a connection assembly 4 connecting the electronic tag to the asset strip and for communicating with the asset strip; wherein, the tag assembly 2 comprises a conductive trigger 22 matched with the asset strip, and the tag assembly 2 triggers the generation of the wake-up signal according to the contact or separation of the conductive trigger 22 and the asset strip.
The label assembly 2 further comprises: and the tag circuit board 21 is electrically connected with the conductive trigger piece 22, and the tag circuit board 21 is in conductive communication connection with the asset strip through the conductive trigger piece 22 and the connecting assembly 4.
The conductive trigger 22 is a duplex contact spring pin with a tail end extending out of the housing 1, and forms a closed loop to trigger generation of a wake-up signal when the duplex contact spring pin 22 is in contact with an asset strip, and also triggers generation of the wake-up signal when the duplex contact spring pin 22 is separated from the asset strip. Specifically, a fixing connector 23 for fixing the duplex contact latch 22 is further provided on the tag circuit board 21. The duplex contact spring needle 22 is in contact with an asset strip, the asset strip forms a closed loop with a first spring needle of the duplex contact spring needle 22, the tag circuit board 21 and a second spring needle of the duplex contact spring needle 22, or the duplex contact spring needle 22 is separated from the asset strip, the closed loop formed by the asset strip and the first spring needle of the duplex contact spring needle 22, the tag circuit board 21 and the second spring needle of the duplex contact spring needle 22 is disconnected, the tag circuit board 21 or the asset strip is triggered to generate a wake-up signal, a U-position manager is awakened, the U-position manager supplies power to the asset strip, the asset strip which is always in a low-power consumption state is awakened, the U-position manager acquires each U-position data from the asset strip, and the state of each U-position is updated and comprises state information such as whether each U-position is occupied. Specifically, the wake-up signal may be transmitted to the U-bit manager in a wired or wireless manner, so as 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 supplying power to the electronic tag through the connecting assembly 4 and receiving and transmitting signals with the electronic tag, and the duplex contact spring pin 22 is used for grounding. Specifically, the asset strip supplies power to the electronic tag through the connecting assembly 4 to complete the initialization work of the electronic tag, sends a synchronous data signal for electronic tag synchronization through the connecting assembly 4, sends a response data signal to the asset strip through the connecting assembly 4 according to the synchronous data signal, and circulates the process;
the asset strip and the electronic tag complete data transmission within preset time or a data acquisition table exists in the asset strip, data contents on the data acquisition table are all 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 switched off.
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 ending 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 duplex contact spring needle 22 is in contact electrical connection with the asset strip to form a closed loop of a first spring needle of the asset strip and the duplex contact spring needle 22, the tag circuit board 21 and a second spring needle of the duplex contact spring needle 22 to trigger and generate a wake-up signal, and then the connecting assembly 4 is in contact electrical connection with the asset strip to form a closed loop of the asset strip, the duplex contact spring needle 22, the tag circuit board 21 and the connecting assembly 4 to generate conductive communication connection of the tag assembly 2 and the asset strip. Accordingly, the separation of the electronic tag from the asset strip, first the separation of the connecting component 4 from the asset strip, the disconnection of the conductive communication connection, and then the separation of the duplex contact spring pin 22 from the asset strip triggers the tag circuit board 21 to generate a wake-up signal.
In addition, the connection assembly 4 is sleeved on the periphery of the duplex contact spring needle 22, and is provided with a through hole for the duplex contact spring needle 22 to pass through and one or more fixed connection portions 41 for being matched, 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, fixing and electrically connecting with the fixing connection portion 41. The connecting component 4 is a metal component, and the tag component 2 is connected and fixed on the asset strip through matching with the magnet 91 on the asset strip. Further, the connecting component 4 is a metal component in a bowl shape, and an insulating plug 3 is further arranged between the duplex contact spring needle 22 and the connecting component 4.
Fig. 4 is a block diagram of an asset management system according to the present invention, and in conjunction with fig. 1, fig. 2 and fig. 4, the present invention further constructs an asset management system, which includes an asset strip, a U-bit manager connected to the asset strip for collecting asset strip data, and at least one electronic tag of any one of the above items.
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 is matched with the conductive trigger 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 fixed asset strip circuit board 7 and two ends of the asset strip sleeve 6 are further arranged. The wire buckle assembly 9 includes a wire buckle housing 92 and a magnet 91 disposed in the asset strip sheath 6 and corresponding to the connection assembly 4, and the magnet 91 is disposed inside the asset strip sheath 6 and corresponding to each conductive disc 8. In this embodiment, the asset strip circuit board 7 is an asset strip flexible PCBA circuit board and the conductive pads 8 are PCB contact pads.
Fig. 3 is a schematic structural diagram of the conductive discs in the asset strip according to the present invention, referring to fig. 3, each conductive disc 8 includes at least two segments of separated low power consumption positive and negative conductive arcs 81 and at least one conductive ring 82 for communication connection with the electronic tag, the conductive arcs 81 are arranged in a circular ring shape and respectively correspond to the dual contact elastic pins 22 of the electronic tag, when the electronic tag is connected, the dual trigger elastic pins 22 are respectively electrically connected to the low power consumption positive and negative conductive arcs 81 to form a wake-up circuit, so as to form a closed loop and generate a wake-up signal; the conductive ring 82 is arranged corresponding to the connecting assembly 4, and the conductive ring 82 is ensured to be fully contacted with the connecting assembly by corresponding position and shape. The conductive ring 82 is electrically connected with the connecting assembly 4 to form a communication line, and forms a closed loop with the wake-up line.
Completely, the asset strip sets up in rack one side, and every electrically conductive dish 8 and line on the asset strip are buckled subassembly 9 and are corresponded the setting with each U position, and the fixed laminating of 5 one end in label silica gel area is on IT equipment, and the other end is connected in the label main part, when having IT equipment to put into the U position, fixes electronic tags connection on the asset strip. Specifically, the dual-contact elastic pin 22 contacts with the low-power-consumption positive and negative conductive arcs 81 on the asset strip, the low-power-consumption positive and negative conductive arcs 81 and the first elastic pin of the dual-contact elastic pin 22, the tag circuit board 21 and the second elastic pin of the dual-contact elastic pin 22 form a closed loop, the tag circuit board 21 or the asset strip is triggered to generate a wake-up signal, the U-position manager is awakened, the U-position manager supplies power to the asset strip to wake up the asset strip which is always in a low-power-consumption state, the U-position manager obtains each U-position data from the asset strip, the state of each U-position is updated, the state information includes whether each U-position is occupied or not, and each U-position data includes identification data and the like transmitted to the conductive disc 8 when the electronic tag is connected with the conductive disc 8. The electronic tag transmits data to the asset strip, and is in contact electrical connection with a conductive ring 82 of the asset strip through a connecting assembly 4, at the moment, the duplex contact spring pin 22 and the low-power-consumption power supply positive and negative conductive arcs 81 are used for grounding, so that a closed loop of the conductive ring 82, the connecting assembly 4, the tag circuit board 21, the duplex contact spring pin 22 and the low-power-consumption power supply positive and negative conductive arcs 81 is formed, and conductive communication connection between the tag assembly 2 and the asset strip is generated.
When the IT equipment is pulled away from the U position, the electronic tag is separated from the asset strip, specifically, the double-contact elastic pin 22 is separated from the positive and negative conductive arcs 81 of the low-power-consumption power supply on the asset strip, the closed loop formed by the asset strip, the first elastic pin of the double-contact elastic pin 22, the tag circuit board 21 and the second elastic pin of the double-contact elastic pin 22 is disconnected, the tag circuit board 21 or the asset strip is triggered to generate a wake-up signal, the U position manager is awakened, the U position manager supplies power for the asset strip, the asset strip which is always in the low-power-consumption state is awakened, the U position manager acquires each U position data from the asset strip, and the state of each U position is updated and comprises state information such as whether each U position is occupied. The electronic tag is separated from the asset strip, and the electronic tag further comprises a closed loop formed by the asset strip, the duplex contact spring pin 22, the tag circuit board 21 and the connecting assembly 4, wherein the communication connection is disconnected.
The asset strip is arranged on one side of the data center cabinet, the electronic tag is fixedly attached to the IT equipment through the tag silica gel belt, and the electronic tag main body is connected and fixed to the asset strip when the IT equipment is placed in the U position. The invention realizes the efficient and stable communication between the label and the asset strip on the basis of less 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, and referring to fig. 5, the present invention constructs a communication control method for communication between an asset strip and an electronic tag, including the following steps:
the asset bar monitors whether an electronic tag is accessed;
when the electronic tag is accessed, the asset strip is triggered to generate a wake-up signal to wake up the asset strip;
the asset strip supplies power to the electronic tag and receives and transmits signals with the electronic tag through the communication line.
In the second embodiment, referring to fig. 6, when the electronic tag is accessed, the asset strip triggers to generate a wake-up signal, and the step of waking up the asset strip includes:
a low-power-consumption power supply is arranged in the asset strip, the asset strip is always in a low-power-consumption state, and when the asset strip detects that the electronic tag is connected, the electronic tag is electrically connected with the asset strip through a wake-up circuit to form a closed loop and trigger the wake-up circuit to generate a wake-up signal to wake up the asset strip. When the electronic tag is accessed, the duplex trigger elastic needle is respectively electrically connected with the anode and the cathode of the low-power-consumption power supply to form a closed loop, so that a wake-up signal is generated.
In the step that the asset strip supplies power to the electronic tag through the communication line and receives and transmits signals with the electronic tag, the method comprises the following steps:
awakening the asset strip according to the awakening signal, connecting the asset strip with an external power supply for conduction, and simultaneously grounding the awakening circuit;
the asset strip supplies power to the electronic tag through a communication line to complete the initialization work of the electronic tag, sends a synchronous data signal for synchronizing the electronic tag through the communication line, sends a response data signal to the asset strip through the communication line according to the synchronous data signal, and circulates the process; wherein the communication line comprises a connection assembly 4 arranged on the electronic tag and a conductive ring 82 arranged on the asset strip. The asset strip forms a closed loop with the electronic tag through the conductive ring 82, the connecting assembly 4, the tag circuit board 21 and the wake-up circuit, the wake-up circuit is grounded, and the asset strip supplies power to the electronic tag and receives and transmits signals with the electronic tag through a communication line formed by the conductive ring 80 and the connecting assembly 4.
And the asset strip and the electronic tag complete data transmission within preset time or a data acquisition table exists in the asset strip, the data content on the data acquisition table is completely acquired and recorded, then communication is finished, the asset strip sends a finishing signal to the electronic tag through a communication line, and the electronic tag is switched off. 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 ending signal output by the asset bar is a low level signal, and the wake-up signal can be a high level signal.
Correspondingly, the invention also constructs a communication control circuit, fig. 7 is a block diagram of the communication control circuit of the invention, and referring to fig. 7, the communication control circuit is used for the communication between the asset strip and the electronic tag, and comprises the following steps:
the wake-up circuit is used for triggering the asset strip to generate a wake-up signal to wake up the asset strip when the asset strip is connected to the electronic tag;
and the communication line is used for supplying power to the electronic tag and receiving and transmitting signals with the electronic tag through the asset strip.
Specifically, the wake-up line is further configured to enable the asset strip to be always in a low power consumption state, when the asset strip detects that the electronic tag is connected to the asset strip, the electronic tag is electrically connected to the asset strip through the wake-up line to form a closed loop to trigger generation of a wake-up signal, wake up the asset strip, enable the asset strip to be conductive, and simultaneously ground the wake-up line. The awakening circuit comprises a duplex trigger elastic pin arranged on the electronic tag and a low-power-consumption power supply anode and cathode arranged on the asset strip; when the electronic tag is connected, the duplex trigger elastic needle is respectively electrically connected with the anode and the cathode 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 through the communication line by the asset strip to complete the initialization work of the electronic tag, the asset strip sends a synchronous data signal for synchronizing the electronic tag through the communication line, and the electronic tag sends a response data signal to the asset strip through the communication line according to the synchronous data signal, so that the process is circulated. And when the communication is finished, the asset strip sends a finishing signal to the electronic tag through the communication line, and the electronic tag is off-line.
Wherein, electronic tags includes: the device comprises a signal transceiving module used for transceiving signals with a communication line, a power supply obtaining module used for obtaining power supply from the communication line and a microprocessor MCU electrically connected with the signal transceiving module and the power supply obtaining module.
The microprocessor is provided with a power supply port electrically connected with the power supply acquisition module, a first grounding port electrically connected with the wake-up circuit, a first input port and a first output port electrically connected with the signal transceiving module.
The asset strip comprises a main controller CPU; the main controller is provided with a second grounding port electrically connected with the awakening 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. Completely, the asset strip supplies power to the electronic tag and receives and dispatches 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 the power supply through the communication line and transmits the power supply to the power supply port of the microprocessor. A second output port on the main controller sends a synchronous data signal for electronic tag synchronization through a communication line, a signal transceiver module receives the synchronous data signal and transmits the synchronous data signal to a first input port on the microprocessor, a response data signal is output through the signal transceiver module according to the first output port on the synchronous data signal microprocessor and is transmitted to a second input port on the main controller through the communication line, and the process is circulated;
and when the communication is finished, the second output port on the main controller sends an output finishing signal through the communication line, the signal receiving and transmitting module receives the finishing signal and transmits the finishing signal to the first input port on the microprocessor, and the electronic tag is switched off.
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 ending signal output by the asset strip 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 asset strip data 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 wake-up circuit to form a closed loop so as to trigger and generate a wake-up signal, wake up the asset strip and simultaneously ground the wake-up circuit; the asset strip supplies power to the electronic tag through the communication line, the asset strip sends a synchronous 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 synchronous data signal. The high-efficiency and stable communication between the asset strip and the electronic tag is realized on the basis of only waking up two lines of the line and the communication line, simple circuit structure and low cost. 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, and the U-bit state is updated in a polling mode; when the contact or separation state of the electronic tag and the asset strip is not changed, the system is in a low power consumption mode, the U-bit manager cannot be awakened, and the 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 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 (20)
1. A communication control method for communication between an asset strip and an electronic tag is characterized by 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 circuit to form a closed loop so as to trigger and generate a wake-up signal, and the asset strip is woken up and the wake-up circuit is simultaneously grounded;
the asset strip supplies power to the electronic tag through a communication line, the asset strip sends a synchronous data signal for electronic tag synchronization through the communication line, the electronic tag sends a response data signal to the asset strip through the communication line according to the synchronous data signal, and the process is circulated.
2. A communication control method for communication between an asset strip and an electronic tag is characterized by comprising the following steps:
the asset strip monitors whether the electronic tag is accessed;
when the electronic tag is accessed, the asset strip is triggered to generate a wake-up signal to wake up the asset strip;
the asset strip supplies power to the electronic tag and receives and transmits signals with the electronic tag through a communication line.
3. The communication control method according to claim 2, wherein the step of waking up the asset strip by triggering the asset strip to generate a wake-up signal when the electronic tag is accessed comprises:
the electronic tag is electrically connected with the asset strip through a wake-up circuit to form a closed loop so as to trigger and generate a wake-up signal to wake up the asset strip.
4. The communication control method according to claim 3, wherein the wake-up circuit comprises a duplex trigger spring pin arranged on the electronic tag and a low-power-consumption power supply anode and cathode arranged on the asset strip;
when the electronic tag is connected, the duplex trigger elastic needle is 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 awakening signal is generated.
5. The communication control method according to claim 2, wherein the step of supplying power to the electronic tag and transmitting and receiving signals to and from the electronic tag by the asset strip via the communication line includes:
awakening the asset strip according to the awakening signal, and grounding the awakening line at the same time;
the asset strip supplies power to the electronic tag through the communication line, the asset strip sends a synchronous 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 synchronous data signal, and the process is circulated.
6. The communication control method according to claim 5, wherein the step of supplying power to the electronic tag and transmitting and receiving signals to and from the electronic tag by the asset strip via a communication line further comprises:
and when the communication is finished, the asset strip sends a finishing signal to the electronic tag through the communication line, and the electronic tag is taken off the phone.
7. The communication control method according to claim 6, 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 output by the asset strip is a low level signal.
8. A communication control circuit for communicating an asset strip with an electronic tag, comprising:
the wake-up circuit is used for triggering the asset strip to generate a wake-up signal to wake up the asset strip when the asset strip is connected to the electronic tag;
and the communication line is used for supplying power to the electronic tag and receiving and transmitting signals with the electronic tag through the asset strip.
9. The communication control circuit of claim 8, wherein the wake-up circuit is further configured to trigger generation of a wake-up signal by the electronic tag through a closed loop formed by electrically connecting the wake-up circuit and the asset strip, so as to wake up the asset strip.
10. The communication control circuit according to claim 9, wherein the wake-up circuit comprises a duplex trigger spring pin arranged on the electronic tag and a low-power-consumption power supply anode and cathode arranged on the asset strip;
when the electronic tag is connected, the duplex trigger elastic needle is 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 awakening signal is generated.
11. The communication control circuit of claim 9, wherein the wake-up line is further configured to simultaneously ground the wake-up line when the asset strip is woken up according to the wake-up signal.
12. The communication control circuit of claim 11, wherein the communication line is further configured to enable the asset strip to power the electronic tag via the communication line, and wherein the asset strip sends a synchronization data signal via the communication line for synchronization of the electronic tag, and wherein the electronic tag sends a reply data signal to the asset strip via the communication line according to the synchronization data signal, and wherein the process is cycled.
13. The communication control circuit of claim 12, wherein the communication line is further configured to terminate communication, and wherein the asset strip sends a termination signal to the electronic tag via the communication line, and wherein the electronic tag is taken off-line.
14. The communication control circuit according to claim 8, wherein the electronic tag comprises: the communication device comprises a signal transceiving module used for transceiving signals with the communication line, a power supply obtaining module used for obtaining power supply from the communication line, and a microprocessor electrically connected with the signal transceiving module and the power supply obtaining module.
15. 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 a first input port and a first output port electrically connected to the signal transceiver module.
16. The communication control circuit of claim 15, wherein the asset strip comprises a master controller; and the main controller is provided with a second grounding port electrically connected with the awakening circuit, and a second input port and a second output port electrically connected with the communication circuit.
17. The communication control circuit of claim 16, wherein the asset strip powers the electronic tag and transceives signals with the electronic tag via the communication line, further comprising:
a second output port on the main controller sends a synchronous data signal for electronic tag synchronization through the communication line, the signal transceiver module receives the synchronous data signal and transmits the synchronous data signal to a first input port on the microprocessor, the first output port on the microprocessor outputs a response data signal through the signal transceiver module according to the synchronous data signal and transmits the response data signal to a second input port on the main controller through the communication line, and the process is circulated;
and when the communication is finished, the second output port on the main controller sends an output finishing signal through the communication line, the signal transceiver module receives the finishing signal and transmits the finishing signal to the first input port on the microprocessor, and the electronic tag is switched off.
18. The communication control circuit according to claim 13 or 17, wherein the synchronous data signal is a byte data signal, the acknowledge data signal is a serial number of the same byte as the byte data signal, and the end signal output by the asset strip is a low signal.
19. The communication control circuit of claim 15, wherein the asset strip powers the electronic tag over the communication line, further comprising:
the asset bar is connected with the 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.
20. An asset management system comprising at least one electronic tag, an asset strip and a U-bit manager for collecting data of said asset strip, characterized in that it further comprises at least one communication control circuit according to any of claims 8-19.
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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| Publication Number | Publication Date |
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| CN111566657A true CN111566657A (en) | 2020-08-21 |
| CN111566657B CN111566657B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201980007122.4A Active CN111566657B (en) | 2019-07-03 | 2019-07-03 | Communication control method, circuit and asset management system |
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| CN (1) | CN111566657B (en) |
| WO (1) | WO2021000274A1 (en) |
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Also Published As
| Publication number | Publication date |
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| WO2021000274A1 (en) | 2021-01-07 |
| CN111566657B (en) | 2023-07-25 |
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