CN106696992A - Point-type LED intelligent lighting device based on current loop communication - Google Patents

Abstract

The invention discloses a point-type LED intelligent lighting device based on current loop communication. The point-type LED intelligent lighting device comprises indoor equipment and outdoor equipment. The indoor equipment comprises a power source, a fuse wire, a filament relay and a monitoring host. The outdoor equipment comprises an LED lamp cap, lighting units and a signal mechanism. The LED lamp cap and the lighting units are fixed in the signal mechanism. The lighting units drive the LED lamp cap. A power loop and an information loop are arranged between the indoor equipment and the outdoor equipment and connected through a power cable and a communication cable. The power loop refers to that the power source is connected with the lighting units in the outdoor equipment through the fuse wire, the filament relay and the power cable. The information loop refers to that information transfer is conducted between the monitoring host and the lighting units through the communication cable. According to the point-type LED intelligent lighting device based on current loop communication, an alarm signal is transmitted through an current loop, and the anti-interference capability is enhanced; positioning and simultaneous fault alarm of the multiple lighting units are achieved through the differential design; the installation space is saved; the size of the point-type LED intelligent lighting device is reduced; and site construction and retrofitting are facilitated.

Description

A kind of point type LED intelligence ignition devices based on current ring communication

Technical field

The invention belongs to railway signal technology field, it is related to a kind of point type LED intelligence lightings based on current ring communication to fill Put.

Background technology

Lighting system is the most frequently used ground signal in railway signal, it mainly by lamp holder, lighting unit, signaling gear, Filament relay, monitoring main frame composition.There is problems with current existing lighting system：The communications of lighting system are typically sharp Monitoring, alarming function is realized by way of alarming line transmission information with relay tip, the impulse waveform of this mode is easily abnormal Become, poor anti jamming capability；The equipment of Machine Room is typically placed on the comprehensive equipment cabinet with combobar, and current monitoring main frame It is both placed in comprehensive support to add, one layer of bracket is newly-built line machinery equivalent to two-layer combobar position, this modes of emplacement is taken Equipment arrangement in room is made troubles, and increases cost of investment, especially in both wired reconstructions, when Machine Room do not leave bracket combination or When bracket combination places inconvenience, monitoring main frame can not be installed at all, this is site operation, and equipment is promoted, and is brought greatly Inconvenience；Monitoring main frame matches setting with lighting unit address need to reserve download interface, and be equipped with downloader, and general downloader is The smallclothes device being of little use, but site environment is complicated, personnel are various, is that the practical operation at scene and the preservation of accessory bring not Just, especially in handling failure, it is difficult to quickly, timely find downloader, delay inquiry fault time；Monitoring system does not consider The treatment of two or more scene lighting unit simultaneous faults, it is impossible to accurately orient the particular location of trouble light, it is impossible to realize Many lighting unit simultaneous faults alarms.Therefore, according to the present situation of lighting system existing equipment, it is necessary to which research and development adapt to new shape The lighting system of gesture, to solve original defect.

The content of the invention

Present invention solves the problem in that providing a kind of point type LED intelligence ignition devices based on current ring communication, solve The problem that lighting system presently, there are, is lighting system construction provides convenient at the scene, enhances lighting system at the scene The practicality of application, convenience, safety and reliability.

The present invention is to be achieved through the following technical solutions：

A kind of point type LED intelligence ignition devices based on current ring communication, including indoor equipment and outdoor equipment；Described Indoor equipment includes power supply, insurance, filament relay, monitoring main frame；Described outdoor equipment include LED lamp holder, lighting unit, Signaling gear, LED lamp holder is fixed on inside signaling gear with lighting unit, and lighting unit drives LED lamp holder；Indoor equipment and room Electric power loop and information circuits are provided between external equipment, are connected with communication cable by feed cable respectively；Described power supply is returned Road refers to that power supply is connected by insurance, filament relay and feed cable with the lighting unit in outdoor equipment；Described information Loop refers to that monitoring main frame carries out information transmission by communication cable and lighting unit.

Described monitoring main frame uses current ring communication mode with lighting unit：When lighting unit has current alarm signal to produce When raw, current alarm signal is converted and transmitted through lighting unit current loop circuit, communication cable, monitoring main frame current loop circuit To the treatment of monitoring host SCM, display；When monitoring main frame current loop circuit has receipt current signal to produce, monitoring main frame is returned Current signal is held by communication cable, lighting unit current loop circuit, is converted and transmit to lighting unit single-chip microcomputer, terminate lighting The transmission of cell current alarm signal.

When current loop no signal current is transmitted, monitoring main frame current loop circuit is in and waits reception state, lighting Cell current loop circuit is in holding state；When lighting unit produces current alarm signal, lighting unit is changed to transmission shape State, has often sent primary current alarm signal, and lighting unit is put into waiting reception state, monitoring main frame temporarily in etc. it is waiting Receipts state；When monitoring main frame identifies the current alarm signal that lighting unit sends, current alarm signal information is converted into Monitoring main frame discernible signal, while monitor main frame and changing to transmission state and sending back and hold current signal, monitoring main frame is often sent out A receipt current signal, monitoring main frame has been sent to be put into waiting reception state；When lighting unit identifies receipt current signal Afterwards, lighting unit enters holding state.

The current loop circuit of described monitoring main frame includes monitoring host power supply circuit, monitoring main frame lightning protection circuit, monitoring Main frame transtation mission circuit, monitoring main frame receiving circuit and monitoring main frame waveform calibration circuit；Monitoring main frame transtation mission circuit includes monitoring Main frame sends isolation circuit and monitoring main frame sending controling circuit；Monitoring main frame receiving circuit includes that monitoring main frame receives isolation electricity Road and monitoring main frame receive control circuit；Lighting unit current loop circuit includes that lighting unit lightning protection circuit, lighting unit send Circuit, lighting unit receiving circuit and lighting unit waveform calibration circuit；Lighting unit transtation mission circuit sends including lighting unit Isolation circuit and lighting unit sending controling circuit；Lighting unit receiving circuit includes that lighting unit receives isolation circuit and lighting Unit receives control circuit.

Design realizes many lighting units while positioning fault alarm when communication protocol is by difference.When lighting unit is led After secondary light source switching, lighting unit communication board works on power, and the single-chip microcomputer of lighting unit communication board reads a little first Lamp unit extension set is encoded, and encoding one random number of acquisition by lighting unit extension set is used as delay time；Then lighting unit leads to The timer for believing plate single-chip microcomputer is overflow value trigger with this random number since 0, after the completion of time delay, sends alarm signal Breath, and timer clear 0, start waiting for receiving monitoring main frame receipt signal；After receipt signal is received, then terminate this time hair Send；If not receiving receipt signal, timer is reset again from " when being used as time delay by one random number of extension set coding acquisition Between " place start judge, repeat program.Monitoring main frame such as is at the state of signal to be received when not having an alarm signal；Work as prison Main frame is surveyed to be subject to first to identify whether to be useful signal during alarm signal, if not then continue waiting for receiving, if useful signal is then Display alarm information and send back and hold current signal on a display screen；Continue waiting for receiving alarm after having sent receipt current signal Signal, directly transmits receipt signal, if receiving different reports if receiving identical alarm signal and then skipping the link of display Alert signal then shows and sends back holds signal；The process that monitoring main frame repeats identification, display, sends.The benefit of do so To distribute different transmission initial times to each lighting unit extension set, it is to avoid many lighting unit extension sets to monitoring main frame simultaneously Transmission information causes the electric current loop cannot proper communication.

Compared with prior art, the present invention has following beneficial technique effect：

1) the communication alert mode of monitoring is redesigned, alarm signal is transmitted by electric current loop, strengthen antijamming capability.

2) design realizes that positioning and many lighting unit simultaneous faults are alarmed when by difference.

3) monitoring can be placed in the lighting system in combobar, and monitoring main frame is changed to put by be placed on comprehensively hold in the palm to add In combobar, two safety relay positions are taken；So monitoring main frame uses method for installing relay, saves installation empty Between, reduce the volume of itself, the construction at convenient scene, transformation.

4) monitoring main frame is changed to touch-screen and show, is not required to separately with downloader, facilitates execute-in-place, certainly.

5) lighting unit structure reduces lighting unit volume using the design of copper column supercircuit plate, improves Space availability ratio.

6) lighting unit warning circuit uses paranema power supply, is truly realized isolating for governor circuit and warning circuit, The normal work of governor circuit is not influenceed when making warning circuit failure.

7) electric capacity fictitious load mode is used, fictitious load caloric value is reduced, product service life is improved.

Brief description of the drawings

Fig. 1 is overall schematic of the invention；

Fig. 2 is the monitoring whole machine theory diagram of main frame；

Fig. 3 is monitoring host power supply plate theory diagram；

Fig. 4 is monitoring main frame master control borad theory diagram；

Fig. 5 is monitoring main-machine communication plate theory diagram；

Fig. 6 is monitoring main frame lighting protection plate theory diagram；

Fig. 7 is the whole machine theory diagram of lighting unit；

Fig. 8 is lighting unit power circuit principle block diagram；

Fig. 9 is lighting unit governor circuit theory diagram；

Figure 10 is monitoring main frame current loop circuit schematic diagram；

Figure 11 is lighting unit current loop circuit schematic diagram；

Figure 12 is monitoring main frame electric current loop software flow pattern；

Figure 13 is lighting unit electric current loop software flow pattern；

Figure 14 adds structure chart for monitoring main frame machine；

Figure 15 adds structure chart for lighting unit machine.

Specific embodiment

With reference to specific case study on implementation, the present invention is described in further detail, and described is explanation of the invention Rather than restriction.

Present invention solves the problem in that providing, one kind transmits communication mode by hardware current and software flow is designed Improve the telecommunication circuit design of communication anti-interference capability；Monitoring main frame is changed to be placed on combobar by be placed on comprehensively hold in the palm to add On, take two safety relay positions；Change design of hardware and software, increases and touches setting function, and downloader is not matched somebody with somebody separately；It is main logical Positioning and many lighting unit simultaneous faults alarms are realized in design when crossing software difference.

Referring to Fig. 1, a kind of point type LED intelligence lighting systems of applied current ring communication, including indoor equipment and outdoor set It is standby；Described indoor equipment has two transmission loops, and first transmission loop is that AC alternating current 220V power supply passes through insurance 8, filament Relay 6 is carrier by power delivery to outdoor equipment with feed cable 4；Another transmission loop of described indoor equipment is The communication information is with communication cable 5 for carrier transmits a signal to monitor main frame 7；Described outdoor equipment has two transmission loops, It is carrier by power delivery to lighting unit 3 that first transmission loop is AC alternating current 220V power supply with feed cable 4；Described room Another of external equipment transmission loop be the communication information with communication cable 5 for carrier transmits a signal to lighting unit 3；

Referring to Fig. 2, described monitoring main frame mainly includes power supply, single-chip microcomputer, display screen and current loop circuit；Power supply is to list Piece machine, display screen and current loop circuit provide electric power support.

Referring to Fig. 3, transformation isolation circuit, 24V out-put supplies, two-way voltage-stabilizing are provided with described monitoring host power supply plate Isolation and amplifier, alarm relay power supply, communication power supply, 5V out-put supplies, connector interconnecting module；Transformation isolation circuit is through 24V Out-put supply is connected with connector interconnecting module；Two-way voltage-stabilizing isolation and amplifier connects alarm relay power supply and 5V outputs respectively Electricity, alarm relay power supply is connected through communication power supply with connector interconnecting module.

Referring to Fig. 4, STM32F cores are provided with the monitoring main frame master control borad, and coupled respectively patch Part interconnecting module, 485 interfaces, CAN interface, audible alarm unit, clock circuit, 3.3V out-put supplies, LCD display interfaces；485 Interface, CAN interface are also connected with connector interconnecting module respectively.

Referring to Fig. 5, monitoring main frame first current loop circuit, monitoring main frame second are provided with the monitoring main-machine communication plate Current loop circuit, monitoring main frame the 3rd current loop circuit, monitoring main frame the 4th current loop circuit, alarm relay circuit, patch Part interconnecting module；

Referring to Fig. 6, the first observation circuit vertically and horizontally lightning protection circuit, the second monitoring are provided with the monitoring main frame lighting protection plate Circuit vertically and horizontally lightning protection circuit, the 3rd observation circuit vertically and horizontally lightning protection circuit, the 4th observation circuit vertically and horizontally lightning protection circuit, power supply It is input into vertically and horizontally lightning protection circuit.

Referring to Fig. 7, described lighting unit 3 include power management module, main control singlechip, main Control point lamp detection module, Adjacent modules, communication alarming single-chip microcomputer, communication alarming module；Communication alarming single-chip microcomputer carries out signal by communication alert module Transmitting-receiving, main control singlechip is connected with power management module, adjacent modules, main Control point lamp detection module.Main Control point lamp detection module Including king light voltage detecting, the detection of secondary modulating voltage, king light power detecting, secondary lamp power detecting, low voltage starting detection and light detection.

Lighting transformer, the first rectifying and wave-filtering, the second rectifying and wave-filtering, filament are provided with referring to Fig. 8, on power management module Switching relay two-way contact, LM2576 voltage stabilizings, LM7805 voltage stabilizings, common mode inductance filtering, communication board power supply, pulse transformer electricity Source, main control singlechip power supply, lamp holder power supply.Using electric capacity fictitious load mode, fictitious load caloric value is reduced, improve product Service life.

Referring to Fig. 9, detection signal is sent to main control singlechip, main control singlechip analyzing and processing by main Control point lamp detection module Detection signal simultaneously controls the first Phototube Coupling, the second Phototube Coupling and the 3rd Phototube Coupling being in parallel respectively；First photoelectricity every It is connected from metal-oxide-semiconductor field effect transistor actuating circuit；Second Phototube Coupling is sequentially connected pulse transformer, current rectifying and wave filtering circuit and vacation and bears Carry actuating of relay circuit；3rd Phototube Coupling is connected with filament transfer relay actuating circuit；Power module passes sequentially through MOS FET actuating circuit, fictitious load actuating of relay circuit, filament transfer relay and king light constant current source driving circuit or Secondary lamp constant current source driving circuit；King light constant current source driving circuit drives king light LED load, secondary lamp constant current source driving circuit drive pair Lamp LED load；Lighting unit warning circuit uses paranema power supply, is truly realized isolating for governor circuit and warning circuit, The normal work of governor circuit is not influenceed when making warning circuit failure；

Below to further instruction of the present invention.

On monitoring main frame

A) monitoring main frame is not placed on pallet, is arranged in combobar by Relay base.

The equipment of Machine Room is typically placed on the comprehensive equipment cabinet with combobar, and current monitoring main frame is both placed in On comprehensive bracket, one layer of bracket takes two-layer combobar position, and this modes of emplacement is that equipment arrangement in Machine Room is made troubles, especially It is when bracket or bracket setting inconvenience are not left on comprehensive equipment cabinet, monitoring main frame can not to be installed at all, and this is applied for scene Work, and equipment is promoted, and brings very big inconvenience.

Monitoring main frame is designed as relay system mounting means, the problem of equipment arrangement inconvenience is not only solved, and not Needing to be modified original equipment cabinet can just be plugged on Relay base monitoring main frame, facilitate site operation and device Material is promoted.

Monitoring main frame inside machine adds structure to be 3 pieces of printed circuit boards and one piece of vertically arranged printed circuit of parallel installation Plate is connected with connector with bronze gong post supporting way hardness, this kind of mounting means, makes 4 pieces of printed circuit boards from integral, knot Structure is reliable and stable, greatly saves installing space, monitoring main frame is taken 2 safety relay spaces, and this causes prison Main frame is surveyed to be achieved by the design that Relay base is arranged in combobar.

B) touch LCD screen is increased.

Monitoring main frame increased touch LCD screen, and so design not only eliminates button and saves inner space, Er Qiezhi Connecing can eliminate downloader with operative configuration lighting unit address, solve and be difficult in handling failure under quick, timely finding Device is carried, delays the problem of inquiry fault time.

C) realization of locating alarming function.

Every lighting unit can set the physical address (by toggle switch) of itself, and monitoring main frame again can be to lighting The address of unit is encoded, that is, realize the positioning to lighting unit.When lighting unit breaks down alarm, main frame is monitored Where just can accurately show failure generation, facilitate the timely handling failure of maintenance personal.

D) many same alarms.

When there is the failure alarm simultaneously of many lighting units, monitoring main frame can be according to the communication protocol of itself to hair The alarm signal rapid answer one by one for coming, realizes function of many lighting units with alarm.

E) current ring communication.

Communication between monitoring main frame and lighting unit uses electric current loop mode.Current ring communication has good anti-interference Ability, is effectively prevented the situation that wrong report is misrepresented deliberately.Electric current loop mainly includes communication power supply, receiving circuit, transtation mission circuit 3 Point.

Communication power supply part is used for the energy needed for providing communication to electric current loop；Receiving circuit is used to receive on electric current loop Current signal, and it is converted into the TTL voltage signals that single-chip microcomputer is capable of identify that；Transtation mission circuit is used to send microcontroller serial port The signal for going out is converted to current signal on electric current loop.

On lighting unit

A) structure.

Because the volume of lighting unit is limited by Mechanism chamber space, so the structure design of lighting unit uses copper column The mode of supercircuit plate is designed, and thus reduces the volume of lighting unit, improves the utilization rate in space.

B) paranema is powered.

When the main silk failure of lighting unit, lighting is switched power supply into paranema, while communication board starts to power and send report Alert news ceases so that alarm realizes temporal synchronous with failure.

C) electric capacity fictitious load.

Electric current is smaller when lighting unit works, therefore increases electric capacity fictitious load and improve lighting unit operating current.Using electric capacity As fictitious load without using resistive load, because the caloric value of electric capacity is smaller, service life is more long.

Current loop circuit is further illustrated below.

Referring to Figure 10, Figure 11, monitoring the current loop circuit of main frame includes monitoring host power supply circuit, monitoring main frame thunder-lightning Road, monitoring main frame transtation mission circuit, monitoring main frame receiving circuit and monitoring main frame waveform calibration circuit；Monitoring main frame transtation mission circuit bag Include monitoring main frame and send isolation circuit and monitoring main frame sending controling circuit；Monitoring main frame receiving circuit includes that monitoring main frame is received Isolation circuit and monitoring main frame receive control circuit；

Lighting unit current loop circuit includes that lighting unit lightning protection circuit, lighting unit transtation mission circuit, lighting unit are received Circuit and lighting unit waveform calibration circuit；Lighting unit transtation mission circuit includes that lighting unit sends isolation circuit and lighting unit Sending controling circuit；Lighting unit receiving circuit includes that lighting unit receives isolation circuit and lighting unit receives control circuit.

During current ring communication, two kinds of current signals are transmitted, one kind is current alarm signal, it is a kind of for receipt electric current is believed Number.Current alarm signal is a kind of alarm square-wave signal that lighting unit sends, when lighting unit fault alarm, by lighting list Elementary current ring transtation mission circuit sends current alarm signal square-wave pulse；Receipt current signal is to monitor a kind of receipt that main frame sends Square-wave signal, when monitoring main frame receives current alarm signal, receipt electric current is sent by monitoring main frame electric current loop transtation mission circuit Signal square-wave pulse.

Monitoring main frame and lighting unit can be at four kinds of states, send state, reception state, wait reception state, standby State.Transmission state is that monitoring main frame current loop circuit or lighting unit current loop circuit are in and send square-wave pulse state；Connect Receipts state is to monitor the state of main frame current loop circuit or lighting unit current loop circuit in square-wave pulse is received；Etc. to be received State is to monitor the state of main frame current loop circuit or lighting unit current loop circuit in reception square-wave pulse is waited；Standby shape State refers to that lighting unit does not go up idle state after electricity does not work or alarms.

Specifically, monitoring host power supply circuit includes diode D1, diode D1 that positive pole is connected with input power VSS Negative pole, one end of electric capacity C1, one end of electric capacity C3, the negative pole of diode D2 and the port phases of monitoring host power supply circuit U1- I Even, the ports of monitoring host power supply circuit U1- II, the positive pole of diode D2, one end of resistance R1 are connected with one end of electric capacity C2, electricity Hinder the other end of R1, the other end of electric capacity C2, the ports of monitoring host power supply circuit U1- III, one end of resistance R2, electric capacity C1 it is another One end is connected with the F1 ports of monitoring main frame lightning protection circuit, and the other end of electric capacity C3 is connected with the other end of resistance R2；

Monitoring main frame lightning protection circuit includes the resistance F1 ports and resistance F2 ports that are in parallel, one end and the monitoring of F1 ports The ports of host power supply circuit U1- III are connected, and the other end of F1 ports is connected with inductance L1-1 ports, inductance L1-2 ports and first Current loop is connected, and inductance L1-4 ports are connected with the second current loop, one end of F2 ports with monitor main frame transmission every D3-1 from circuit is connected, and the other end of F2 ports is connected with inductance L1-3 ports；

Monitoring main frame transtation mission circuit includes that monitoring main frame sends isolation circuit and monitoring main frame sending controling circuit；Monitoring master Machine sends isolation circuit includes the diode group D3 that concatenation is constituted, wherein diode D3-1 and monitoring main frame lightning protection circuit F2 port One end be connected, diode D3-2 is connected with GND1, monitors main diode D3-3 and is connected with one end of load resistance R3, loads electric The other end of R3, monitoring main frame transmission isolation circuit U4-4 ports is hindered to be connected with monitoring main frame transmission isolation circuit U3-4 ports, Monitoring main frame sends isolation circuit U4-3 ports, monitoring main frame transmission isolation circuit U3-3 ports and is connected with diode D3-4；

Monitoring main frame sending controling circuit includes the transtation mission circuit control signal TXD1 being connected with one end of resistance R7, amplifies The base stage of device Q1, the positive pole of diode D4, one end of resistance R6 are connected with the other end of resistance R7, the colelctor electrode of amplifier Q1, The negative pole of diode D4 is connected with one end of resistance R8, and the other end of resistance R8, one end of electric capacity C6 are electric with the master control of monitoring main frame Source VCC is connected, and the other end of electric capacity C6 is connected with the GND for monitoring main frame master control power supply, the emitter stage of amplifier Q1, resistance R5 One end, monitoring main frame sending controling circuit U4-1 ports are connected with monitoring main frame sending controling circuit U3-1 ports, resistance R6's The other end, the other end of resistance R5, monitoring main frame sending controling circuit U4-2 ports, monitoring main frame sending controling circuit U3-2 ends Mouth is connected with the GND of monitoring main frame master control power supply；

Monitoring main frame receives isolation circuit includes that the monitoring main frame being connected with one end of load resistance R3 receives isolation circuit U2-1 ports, monitoring main frame receives isolation circuit U2-2 ports and is connected with the other end of load resistance R3；

Monitoring main frame receiving circuit：Monitoring main frame receives control circuit U 2-4 ports, one end of electric capacity C4 and monitoring main frame Master control power supply VCC is connected, and the other end of electric capacity C4 is connected with monitoring main frame master control power supply GND, and monitoring main frame receives control circuit U2-3 ports, one end of resistance R4, one end of electric capacity C5 are connected with output signal Rec1, the other end of resistance R4, electric capacity C5 The other end is connected with monitoring main frame master control power supply GND；

Monitoring main frame waveform calibration circuit：Output signal Rec1 is connected with monitoring main frame waveform calibration circuit U 5-2 ports, Monitoring main frame waveform calibration circuit U 5-1, control signal DIR are connected with one end of resistance R8, and the other end and the monitoring of resistance R8 are led Owner's control power supply GND is connected, monitoring main frame waveform calibration circuit U 5-14 ports, one end of electric capacity C7 and monitoring main frame master control electricity Source VCC is connected, and the other end of electric capacity C7 is connected with monitoring main frame master control power supply GND, monitoring main frame waveform calibrate circuit U 5-7 and Monitoring main frame master control power supply GND is connected, monitoring main frame waveform calibration circuit U 5-3 ports, one end of resistance R9 and output signal RXD1 is connected, and the other end of resistance R9 is connected with monitoring main frame master control power supply GND.

Lighting unit lightning protection circuit includes the resistance F11 ports and resistance F21 ports that are in parallel, one end of point F11 ports Isolation circuit diode D31-2 is sent with lighting unit to be connected, the other end of F11 ports is connected with inductance L11-1 ports, inductance L11-2 ports are connected with the second current loop, and inductance L11-4 ports are connected with the first current loop, one end of F21 ports Isolation circuit diode D31-1 is sent with lighting unit to be connected, the other end of F21 ports is connected with inductance L11-3 ports；

Lighting unit sends isolation circuit includes the lighting unit hair that is connected with one end of lighting unit lightning protection circuit F21 ports Isolation circuit diode D31-1, diode D31-2 is sent to be connected with one end of lighting unit hair lightning protection circuit F11 ports, D31-3 One end with load resistance R31 is connected, and the other end of load resistance R31, U41-4 ports are connected with U31-4 ports, U41-3 ends Mouth, U31-3 ports are connected with diode D31-4；

Lighting unit sending controling circuit includes the transtation mission circuit being connected with one end of lighting unit sending controling circuit R71 The base stage of control signal TXD11, amplifier Q11, the positive pole of diode D41 are connected with the other end of resistance R71, amplifier Q11 Colelctor electrode, the negative pole of diode D41 be connected with one end of resistance R81, the other end of resistance R81, one end of electric capacity C61 and point Lamp unit master control power supply VCC is connected, and the other end of electric capacity C61 is connected with the GND of lighting unit master control power supply, amplifier Q11's Emitter stage, one end of resistance R61, one end of resistance R51, lighting unit sending controling circuit U41-1 ports and lighting unit hair Control circuit U 31-1 ports are sent to be connected, the other end of resistance R61, the other end of resistance R51, lighting unit sending controling circuit U41-2 ports, lighting unit sending controling circuit U31-2 ports are connected with the GND of lighting unit master control power supply；

Lighting unit receives isolation circuit includes the lighting unit reception isolation circuit that is connected with one end of load resistance R31 U21-1 ports, lighting unit receives isolation circuit U21-2 ports and is connected with the other end of load resistance R31；

Lighting unit receives control circuit：Lighting unit receives control circuit U 21-4, one end of electric capacity C41 and lighting list First master control power supply VCC is connected, and the other end of electric capacity C4 1 is connected with lighting unit master control power supply GND, and lighting unit receives control Circuit U 21-3 ports, one end of resistance R41, one end of electric capacity C51 are connected with output signal Rec1, the other end of resistance R41, The other end of electric capacity C51 is connected with lighting unit master control power supply GND；

Lighting unit waveform calibrates circuit：Output signal Rec1 signals and lighting unit waveform calibration circuit U 51-2 ports It is connected, lighting unit waveform calibration circuit U 51-1 ports, control signal DIR are connected with one end of resistance R81, and resistance R81's is another One end is connected with lighting unit master control power supply GND, lighting unit waveform calibration circuit U 51-14 ports, one end of electric capacity C71 with Lighting unit master control power supply VCC is connected, and the other end of electric capacity C71 is connected with lighting unit master control power supply GND, lighting unit waveform Calibration circuit U 51-7 ports are connected with lighting unit master control power supply GND, lighting unit waveform calibration circuit U 51-3 ports, resistance One end of R91 is connected with output signal RXD1, and the other end of resistance R91 is connected with lighting unit master control power supply GND.

The course of work of current ring communication is as follows：When whole current loop no signal current is transmitted, at monitoring main frame In reception state is waited, lighting unit is in holding state；When lighting unit produces current alarm signal, lighting unit conversion To the state of transmission, primary current alarm signal is often sent, lighting unit is put into waiting reception state, and monitoring main frame is temporarily located In wait reception state；When alarm signal is transmitted to monitoring main frame, monitoring main frame is in reception state；When monitoring main frame identification When going out the current alarm signal of lighting unit transmission, monitoring main frame enters transmission state, sends receipt current signal, monitors main frame Often sent a receipt current signal, monitoring main frame is put into waiting reception state, lighting unit temporarily in etc. it is to be received State；When alarm signal is transmitted to lighting unit, lighting unit is in reception state；When lighting unit identifies receipt electric current After signal, lighting unit enters holding state, stops receiving and sends.

Current alarm signal transmitting procedure：When the current alarm signal for thering is lighting unit to send in current loop, point The input TXD1 of lamp unit sending controling circuit be alert data, alert data by lighting unit sending controling circuit R71 Driving lighting unit sending controling circuit Q11 makes its break-make, and lighting unit master control power supply VCC sends control electricity by lighting unit Road R81, lighting unit sending controling circuit Q11 drive lighting unit transtation mission circuit U41, lighting unit transtation mission circuit U31 break-makes, Alert data is loaded into current loop；

When the current alarm signal for having lighting unit to send in current loop, lighting unit receiving circuit is in forbids Receive state；

When the current alarm signal for thering is lighting unit to send in current loop, main frame sending controling circuit TXD1 is monitored In high level, high level drives the Q1 conductings of monitoring main frame sending controling circuit by the R7 of monitoring main frame sending controling circuit, Monitoring main frame master control power supply VCC drives monitoring by monitoring main frame sending controling circuit R8, monitoring main frame sending controling circuit Q1 Main frame transtation mission circuit U4, the U3 conductings of monitoring main frame transtation mission circuit, communication section current loop；

When the current alarm signal for having lighting unit to send in current loop, monitoring host power supply circuit is electric current loop Circuit provides power supply, and power supply passes through the F1 of monitoring main frame lightning protection circuit, the L1 of monitoring main frame lightning protection circuit, the electricity of monitoring main frame first Stream loop back path, the current loop of lighting unit first, lighting unit lightning protection circuit L11, lighting unit lightning protection circuit F21, lighting Unit sends isolation circuit D31-1, lighting unit and sends isolation circuit D31-3, lighting unit load resistance R31, lighting unit Send isolation circuit U41-4 and lighting unit sends isolation circuit U31-4, lighting unit and sends isolation circuit U41-3 and lighting Unit sends isolation circuit U31-3, lighting unit and sends isolation circuit D31-4, lighting unit transmission isolation circuit D31-2, point Lamp unit lightning protection circuit F11, lighting unit lightning protection circuit L11, lighting unit current loop 21, the monitoring electric current loop of main frame second Loop, the L1 of monitoring main frame lightning protection circuit, the F2 of monitoring main frame lightning protection circuit, monitoring main frame send isolation circuit D3-1, monitoring Main frame sends isolation circuit D3-3, monitoring main frame and receives isolation circuit U2-1, monitoring main frame reception isolation circuit U2-2, monitoring master Machine sends isolation circuit U4-4 and monitoring main frame sends isolation circuit U3-4, monitoring main frame and sends isolation circuit U4-3 and monitoring master Machine sends isolation circuit U3-3, monitoring main frame and sends isolation circuit D3-4, monitoring main frame transmission isolation circuit D3-2, monitoring main frame Send isolation circuit GND1；

When the current alarm signal for thering is lighting unit to send in current loop, main frame receiving circuit from electric current loop is monitored The current alarm signal received in loop receives isolation circuit U2 and is converted into Rec1 output signals by monitoring main frame, then passes through RXD1 signals feeding monitoring host SCM is exported after the waveform calibration circuit calibration of monitoring main frame.

Receipt current signal transfer process：When there is the receipt current signal of monitoring main frame in current loop, monitoring master The input TXD1 of machine sending controling circuit is receipt data, and receipt data drive prison by the R7 of monitoring main frame sending controling circuit Surveying main frame sending controling circuit Q1 makes its break-make, and monitoring main frame master control power supply VCC is by monitoring main frame sending controling circuit R8, prison Surveying main frame sending controling circuit Q1 drives monitoring main frame transtation mission circuit U4, monitoring main frame transtation mission circuit U3 break-makes, receipt data to add It is downloaded to current loop；

When there is the receipt current signal of monitoring main frame in current loop, monitoring main frame receiving circuit is in forbids receiving State；

When there is the receipt current signal of monitoring main frame in current loop, lighting unit sending controling circuit TXD1 is in High level, high level drives lighting unit sending controling circuit Q11 to turn on by the R71 of lighting unit sending controling circuit, point Lamp unit master control power supply VCC drives lighting by lighting unit sending controling circuit R81, lighting unit sending controling circuit Q11 Unit transtation mission circuit U41, lighting unit transtation mission circuit U31 are turned on, communication section current loop；

When there is the receipt current signal of monitoring main frame in current loop, monitoring host power supply circuit is current loop circuit Power supply is provided, power supply passes through the F1 of monitoring main frame lightning protection circuit, the L1 of monitoring main frame lightning protection circuit, the monitoring electric current loop of main frame first Loop, the current loop of lighting unit first, lighting unit lightning protection circuit L11, lighting unit lightning protection circuit F21, lighting unit Send isolation circuit D31-1, lighting unit and send isolation circuit D31-3, lighting unit reception isolation circuit U21-1, lighting list Unit receives isolation circuit U21-2, lighting unit and sends isolation circuit U41-4 and lighting unit transmission isolation circuit U31-4, lighting Unit sends isolation circuit U41-3 and lighting unit sends isolation circuit U31-3, lighting unit and sends isolation circuit D31-4, point Lamp unit sends isolation circuit D31-2, lighting unit lightning protection circuit F11, lighting unit lightning protection circuit L1, the electricity of lighting unit second Stream loop back path, monitoring main frame second current loop, the L1 of monitoring main frame lightning protection circuit, the F2 of monitoring main frame lightning protection circuit, prison Survey main frame and send isolation circuit D3-1, monitoring main frame transmission isolation circuit D3-3, monitoring load on host computers resistance R3, monitoring main frame hair Isolation circuit U3-4, monitoring main frame send isolation circuit U4-3 and monitoring main frame is sent out to send isolation circuit U4-4 and monitoring main frame to send Send isolation circuit U3-3, monitoring main frame to send isolation circuit D3-4, monitoring main frame transmission isolation circuit D3-2, monitoring main frame to send Isolation circuit GND1；

When there is the receipt current signal of monitoring main frame in current loop, lighting unit receiving circuit is from current loop In the electric current receipt signal that receives receive isolation circuit U21 by lighting unit and be converted into Rec1 output signals, then passing point RXD1 signals feeding lighting unit communication alarming single-chip microcomputer is exported after the calibration circuit calibration of lamp unit waveform.

Referring to Figure 12, Figure 13, design realizes many lighting units while positioning fault alarm when the present invention is by difference.Work as a little After lamp unit occurs the switching of major-minor light source, lighting unit communication board works on power, the monolithic of lighting unit communication board Prow first reads lighting unit extension set coding, and encoding one random number of acquisition by lighting unit extension set is used as delay time；So The timer of lighting unit communication board single-chip microcomputer is overflow value trigger with this random number since 0 afterwards, after the completion of time delay, Warning message is sent, and timer clear 0, starts waiting for receiving monitoring main frame receipt signal；After receipt signal is received, then tie Beam this time sends；If not receiving receipt signal, timer is reset again from " by one random number work of extension set coding acquisition Be delay time " place start judge, repeat program.Monitoring main frame such as is at the shape of signal to be received when not having an alarm signal State；First identify whether to be useful signal when monitoring main frame and being subject to alarm signal, if not then continue waiting for receiving, if effectively Signal then display alarm information and sends back and holds current signal on a display screen；Continue waiting for connecing after having sent receipt current signal Alarm signal is received, receipt signal is directly transmitted if receiving identical alarm signal and then skipping the link of display, if receiving not Same alarm signal then shows and sends back holds signal；The process that monitoring main frame repeats identification, display, sends.Do so Benefit be to distribute different transmission initial times to each lighting unit extension set, it is to avoid many lighting unit extension sets are led to monitoring Transmission information causes the electric current loop cannot proper communication to machine simultaneously.

Referring to Figure 14, monitoring main frame 7 uses method for installing relay, saves installing space, reduces the volume of itself, convenient The construction at scene, transformation；Monitoring main frame includes that housing 11, display screen 12, switching circuit board 13, main control board 14, connection are attached Part 15, be connected terminal 16, backplane circuit plate 17, bottom 18, insulating base 19, spring washer and nut 23, insulation board 24, extension angle 19, electricity Source blade unit 25, M4 screw rods and nut 20, power supply circuit board 21, communication board 22；Main control board 14 and communication board 22 are connected by connector, and are fixed with copper stud；Main control board 14 is with communication board 22 entirely through communication board Connector on 22 is connected with backplane circuit plate 17, and is fixed with turning；Power supply circuit board 21 passes through connector and backplane circuit Plate 17 is connected and is fixed with turning, is also fixed with copper stud with communication board 22 in addition；Switching circuit board 13 passes through connector It is connected with main control board 14, display screen 12 is welded with switching circuit board 13；Angle, power supply blade unit 25, screw is hung to constitute Relay terminal is welded on backplane circuit plate 17；Insulation board 24 is arranged on the outside of relay terminal；M6 screws, M6 plain cushions, Together with M6 spring washers and nut 23 fix bottom 18 with relay；Pass through M4 screw rods and nut between housing 11 and bottom 18 20 are fixedly linked；Monitoring main frame is integrally plugged on insulating base 19 fixed.

Referring to Figure 15, the structure of lighting unit 3 reduces lighting unit body using the design of copper column supercircuit plate Product, improves space availability ratio；Lighting unit includes housing 31, transformer 32, electric capacity 33, communication board 34, associated electronic circuitry It is plate 35, curved row's pin 36, toggle switch 37, dial window 38, copper packing post 39, screw and spring washer 40, copper packing post 41, bottom 42, flat Pad and spring washer 43, main control board 47, ten thousand can terminal 44, M3 flat shims and nuts 45；Transformer 32, electric capacity 33, copper packing post 39 are fixed on bottom 42；Main control board 47 is fixed on copper packing post 39, and by curved row's pin 36 and the phase of associated electronic circuitry plate 35 Even, toggle switch 37 is welded with associated electronic circuitry plate 35；Communication board 34 is plugged on associated electronic circuitry plate 35, and electric with master control It is fixedly linked by copper packing post 41 between road plate 47；Together with housing 31 is fixed by screws in bottom 42, ten thousand can terminal 44 can It is plugged in communication board 34 with the opening by housing 31, lighting unit can be encoded by dial window 38.

Example given above is to realize the present invention preferably example, the invention is not restricted to above-described embodiment.This area Technical staff any nonessential addition, the replacement made according to the technical characteristic of technical solution of the present invention, belong to this The protection domain of invention.

Claims (10)

1. it is a kind of based on current ring communication point type LED intelligence ignition device, it is characterised in that set including indoor equipment and outdoor It is standby；Described indoor equipment includes power supply (9), insurance (8), filament relay (6), monitoring main frame (7)；Described outdoor equipment Including LED lamp holder (1), lighting unit (3), signaling gear (2), LED lamp holder (1) is fixed on signaling gear with lighting unit (3) (2) internal, lighting unit (3) drives LED lamp holder (1)；Electric power loop is provided between indoor equipment and outdoor equipment and information is returned Road, is connected by feed cable (4) with communication cable (5) respectively；Described electric power loop is power supply (9) by insuring (8), lamp Silk relay (6) and feed cable (4) are connected with the lighting unit (3) in outdoor equipment；Described information circuits are monitoring Main frame (7) carries out information transmission by communication cable (5) and lighting unit (3).

2. the point type LED intelligence ignition devices of current ring communication are based on as claimed in claim 1, it is characterised in that described Monitoring main frame (7) uses current ring communication mode with lighting unit (3)：When lighting unit (3) has current alarm signal to produce, Current alarm signal through lighting unit current loop circuit, communication cable (5), monitoring main frame current loop circuit, convert and transmit to Monitoring main frame (7) treatment, display；

When monitoring main frame current loop circuit has receipt current signal to produce, monitoring main frame receipt current signal is by communication cable (5), lighting unit current loop circuit, converts and transmits to lighting unit single-chip microcomputer, terminates lighting cell current alarm signal Send.

3. the point type LED intelligence ignition devices of current ring communication are based on as claimed in claim 2, it is characterised in that work as electric current When loop back path no signal current is transmitted, monitoring main frame current loop circuit is in and waits reception state, lighting unit current loop circuit In holding state；

When lighting unit produces current alarm signal, lighting unit (3) conversion has often sent primary current report to the state of transmission Alert signal, lighting unit is put into waiting reception state, and monitoring main frame is temporarily in wait reception state；

When monitoring main frame (7) identifies the current alarm signal that lighting unit (3) sends, the conversion of current alarm signal information Into the recognizable signal of monitoring main frame, while monitor main frame and changing to transmission state and sending back and hold current signal, main frame is monitored A receipt current signal is often sent, monitoring main frame is put into waiting reception state；

After lighting unit (3) identifies receipt current signal, lighting unit enters holding state.

4. the point type LED intelligence ignition devices of current ring communication are based on as claimed in claim 2, it is characterised in that described Monitoring the current loop circuit of main frame includes monitoring host power supply circuit, monitoring main frame lightning protection circuit, monitoring main frame transtation mission circuit, prison Survey main frame receiving circuit and monitoring main frame waveform calibration circuit；Monitoring main frame transtation mission circuit includes that monitoring main frame sends isolation circuit With monitoring main frame sending controling circuit；Monitoring main frame receiving circuit includes that monitoring main frame receives isolation circuit and monitoring main frame is received Control circuit；

Lighting unit current loop circuit includes lighting unit lightning protection circuit, lighting unit transtation mission circuit, lighting unit receiving circuit Circuit is calibrated with lighting unit waveform；Lighting unit transtation mission circuit includes that lighting unit sends isolation circuit and lighting unit sends Control circuit；Lighting unit receiving circuit includes that lighting unit receives isolation circuit and lighting unit receives control circuit.

5. the point type LED intelligence ignition devices of current ring communication are based on as claimed in claim 4, it is characterised in that monitoring master Electromechanical source circuit include the negative pole of the positive pole diode D1 that is connected with input power VSS, diode D1, one end of electric capacity C1, One end of electric capacity C3, the negative pole of diode D2 are connected with the ports of monitoring host power supply circuit U1- I, monitoring host power supply circuit U1- II port, the positive pole of diode D2, one end of resistance R1 are connected with one end of electric capacity C2, the other end of resistance R1, electric capacity C2 The other end, the ports of monitoring host power supply circuit U1- III, one end of resistance R2, the other end of electric capacity C1 and monitoring main frame thunder-lightning The F1 ports on road are connected, and the other end of electric capacity C3 is connected with the other end of resistance R2；

Monitoring main frame lightning protection circuit includes the resistance F1 ports and resistance F2 ports that are in parallel, one end and the monitoring main frame of F1 ports The ports of power circuit U1- III are connected, and the other end of F1 ports is connected with inductance L1-1 ports, inductance L1-2 ports and the first electric current Loop back path is connected, and inductance L1-4 ports are connected with the second current loop, and one end of F2 ports sends with monitoring main frame and isolates electricity The D3-1 on road is connected, and the other end of F2 ports is connected with inductance L1-3 ports；

Monitoring main frame transtation mission circuit includes that monitoring main frame sends isolation circuit and monitoring main frame sending controling circuit；Monitoring main frame hair Sending isolation circuit includes the one of the diode group D3 that concatenation is constituted, wherein diode D3-1 and monitoring main frame lightning protection circuit F2 port End is connected, and diode D3-2 is connected with GND1, monitors main diode D3-3 and is connected with one end of load resistance R3, load resistance R3 The other end, monitoring main frame send isolation circuit U4-4 ports and send isolation circuit U3-4 ports with monitoring main frame and be connected, monitoring Main frame sends isolation circuit U4-3 ports, monitoring main frame transmission isolation circuit U3-3 ports and is connected with diode D3-4；

Monitoring main frame sending controling circuit includes the transtation mission circuit control signal TXD1, amplifier Q1 that are connected with one end of resistance R7 Base stage, the positive pole of diode D4, one end of resistance R6 be connected with the other end of resistance R7, the colelctor electrode of amplifier Q1, two poles The negative pole of pipe D4 is connected with one end of resistance R8, the other end of resistance R8, one end of electric capacity C6 and monitoring main frame master control power supply VCC Be connected, the other end of electric capacity C6 is connected with the GND for monitoring main frame master control power supply, the emitter stage of amplifier Q1, one end of resistance R5, Monitoring main frame sending controling circuit U4-1 ports are connected with monitoring main frame sending controling circuit U3-1 ports, and resistance R6's is another End, the other end of resistance R5, monitoring main frame sending controling circuit U4-2 ports, monitoring main frame sending controling circuit U3-2 ports with The GND for monitoring main frame master control power supply is connected；

Monitoring main frame receives isolation circuit includes that the monitoring main frame being connected with one end of load resistance R3 receives isolation circuit U2-1 Port, monitoring main frame receives isolation circuit U2-2 ports and is connected with the other end of load resistance R3；

Monitoring main frame receiving circuit：Monitoring main frame receives control circuit U 2-4 ports, one end of electric capacity C4 and monitoring main frame master control Power supply VCC is connected, and the other end of electric capacity C4 is connected with monitoring main frame master control power supply GND, and monitoring main frame receives control circuit U 2-3 Port, one end of resistance R4, one end of electric capacity C5 are connected with output signal Rec1, the other end of resistance R4, electric capacity C5 it is another End is connected with monitoring main frame master control power supply GND；

Monitoring main frame waveform calibration circuit：Output signal Rec1 is connected with monitoring main frame waveform calibration circuit U 5-2 ports, monitors Main frame waveform calibration circuit U 5-1, control signal DIR are connected with one end of resistance R8, the other end and the monitoring main frame master of resistance R8 Control power supply GND is connected, monitoring main frame waveform calibration circuit U 5-14 ports, one end of electric capacity C7 and monitoring main frame master control power supply VCC It is connected, the other end of electric capacity C7 is connected with monitoring main frame master control power supply GND, and monitoring main frame waveform calibration circuit U 5-7 leads with monitoring Owner's control power supply GND is connected, monitoring main frame waveform calibration circuit U 5-3 ports, one end of resistance R9 and output signal RXD1 phases Even, the other end of resistance R9 is connected with monitoring main frame master control power supply GND.

6. the point type LED intelligence ignition devices of current ring communication are based on as claimed in claim 4, it is characterised in that lighting list First lightning protection circuit includes the resistance F11 ports and resistance F21 ports that are in parallel, and one end and the lighting unit of point F11 ports send Isolation circuit diode D31-2 is connected, and the other end of F11 ports is connected with inductance L11-1 ports, inductance L11-2 ports and the Two current loops are connected, and inductance L11-4 ports are connected with the first current loop, and one end and the lighting unit of F21 ports are sent out Isolation circuit diode D31-1 is sent to be connected, the other end of F21 ports is connected with inductance L11-3 ports；

Lighting unit send isolation circuit include be connected with one end of lighting unit lightning protection circuit F21 ports lighting unit transmission every From circuit diode D31-1, one end of diode D31-2 and lighting unit hair lightning protection circuit F11 ports is connected, D31-3 with bear The one end for carrying resistance R31 is connected, and the other end of load resistance R31, U41-4 ports are connected with U31-4 ports, U41-3 ports, U31-3 ports are connected with diode D31-4；

Lighting unit sending controling circuit includes the transtation mission circuit control being connected with one end of lighting unit sending controling circuit R71 The base stage of signal TXD11, amplifier Q11, the positive pole of diode D41 are connected with the other end of resistance R71, the collection of amplifier Q11 Electrode, the negative pole of diode D41 are connected with one end of resistance R81, the other end of resistance R81, one end of electric capacity C61 and lighting list First master control power supply VCC is connected, and the other end of electric capacity C61 is connected with the GND of lighting unit master control power supply, the transmitting of amplifier Q11 Pole, one end of resistance R61, one end of resistance R51, lighting unit sending controling circuit U41-1 ports and lighting unit send control Circuit U 31-1 ports processed are connected, the other end of resistance R61, the other end of resistance R51, lighting unit sending controling circuit U41-2 Port, lighting unit sending controling circuit U31-2 ports are connected with the GND of lighting unit master control power supply；

Lighting unit receives isolation circuit includes the lighting unit reception isolation circuit U21-1 that is connected with one end of load resistance R31 Port, lighting unit receives isolation circuit U21-2 ports and is connected with the other end of load resistance R31；

Lighting unit receives control circuit：Lighting unit receives control circuit U 21-4, one end of electric capacity C41 and lighting unit master Control power supply VCC is connected, and the other end of electric capacity C4 1 is connected with lighting unit master control power supply GND, and lighting unit receives control circuit U21-3 ports, one end of resistance R41, one end of electric capacity C51 are connected with output signal Rec1, the other end of resistance R41, electric capacity The other end of C51 is connected with lighting unit master control power supply GND；

Lighting unit waveform calibrates circuit：Output signal Rec1 signals are connected with lighting unit waveform calibration circuit U 51-2 ports, Lighting unit waveform calibration circuit U 51-1 ports, control signal DIR are connected with one end of resistance R81, the other end of resistance R81 It is connected with lighting unit master control power supply GND, lighting unit waveform calibration circuit U 51-14 ports, one end of electric capacity C71 and lighting Unit master control power supply VCC is connected, and the other end of electric capacity C71 is connected with lighting unit master control power supply GND, the calibration of lighting unit waveform Circuit U 51-7 ports are connected with lighting unit master control power supply GND, lighting unit waveform calibration circuit U 51-3 ports, resistance R91 One end be connected with output signal RXD1, the other end of resistance R91 is connected with lighting unit master control power supply GND.

7. the point type LED intelligence ignition devices of current ring communication are based on as claimed in claim 5, it is characterised in that electric current report Warning signal transmission is：When the current alarm signal for having lighting unit to send in current loop, lighting unit sends control electricity The input TXD1 on road is alert data, and alert data drives lighting unit by the resistance R71 of lighting unit sending controling circuit Sending controling circuit amplifier Q11 makes its break-make, lighting unit master control power supply VCC by lighting unit sending controling circuit electricity Resistance R81, lighting unit sending controling circuit amplifier Q11 drive lighting unit transtation mission circuit U41 ports, lighting unit to send electricity Road U31 ports break-make, alert data is loaded into current loop；

When the current alarm signal for having lighting unit to send in current loop, lighting unit receiving circuit is in forbids receiving State；

When the current alarm signal for having lighting unit to send in current loop, monitoring main frame sending controling circuit TXD1 is in High level, high level drives monitoring main frame sending controling circuit amplifier Q1 by the resistance R7 of monitoring main frame sending controling circuit Conducting, monitoring main frame master control power supply VCC is put by monitoring main frame sending controling circuit resistance R8, monitoring main frame sending controling circuit Big device Q1 drives monitoring main frame transtation mission circuit U4 ports, the conducting of monitoring main frame transtation mission circuit U3 ports, communication section electric current loopback Road；

When the current alarm signal for having lighting unit to send in current loop, monitoring host power supply circuit is current loop circuit Power supply is provided, power supply by monitoring main frame lightning protection circuit F1 ports, the L1 ports of monitoring main frame lightning protection circuit, monitoring main frame the One current loop, the current loop of lighting unit first, lighting unit lightning protection circuit L11 ports, lighting unit lightning protection circuit F21 ports, lighting unit send isolation circuit diode D31-1, lighting unit and send isolation circuit diode D31-3, lighting Unit loads resistance R31, lighting unit transmission isolation circuit U41-4 ports and lighting unit transmission isolation circuit U31-4 ports, Lighting unit sends isolation circuit U41-3 ports and lighting unit sends isolation circuit U31-3 ports, lighting unit and sends isolation Circuit diode D31-4, lighting unit send isolation circuit diode D31-2, lighting unit lightning protection circuit F11 ports, lighting Unit lightning protection circuit L11 ports, the current loop of lighting unit second, monitoring main frame second current loop, monitoring main frame are prevented The L1 ports on thunder and lightning road, the F2 ports of monitoring main frame lightning protection circuit, monitoring main frame send isolation circuit diode D3-1, monitoring master Machine sends isolation circuit diode D3-3, monitoring main frame and receives isolation circuit U2-1 ports, monitoring main frame reception isolation circuit U2- 2 ports, monitoring main frame send isolation circuit U4-4 ports and monitoring main frame sends isolation circuit U3-4 ports, monitoring main frame and sends Isolation circuit U4-3 ports and monitoring main frame send isolation circuit U3-3 ports, monitoring main frame send isolation circuit D3-4 ports, Monitoring main frame sends isolation circuit D3-2 ports, monitoring main frame and sends isolation circuit GND1；

When the current alarm signal for thering is lighting unit to send in current loop, main frame receiving circuit from current loop is monitored In the current alarm signal that receives receive isolation circuit U2 by monitoring main frame and be converted into output signal Rec1, then by monitoring Output signal RXD1 feeding monitoring host SCMs after the calibration circuit calibration of main frame waveform；

Receipt current signal transfer is：When there is the receipt current signal of monitoring main frame in current loop, monitoring main frame sends The input TXD1 of circuit is controlled for receipt data, receipt data drive monitoring by the resistance R7 of monitoring main frame sending controling circuit Main frame sending controling circuit amplifier Q1 makes its break-make, and monitoring main frame master control power supply VCC is by monitoring main frame sending controling circuit Resistance R8, monitoring main frame sending controling circuit amplifier Q1 drive monitoring main frame transtation mission circuit U4 ports, monitoring main frame to send electricity Road U3 ends break-make, receipt data are loaded into current loop；

When there is the receipt current signal of monitoring main frame in current loop, monitoring main frame receiving circuit is in forbids receiving shape State；

When there is the receipt current signal of monitoring main frame in current loop, lighting unit sending controling circuit TXD1 is in electricity high Flat, high level drives lighting unit sending controling circuit amplifier Q11 to lead by the resistance R71 of lighting unit sending controling circuit Logical, lighting unit master control power supply VCC sends control resistance R81, lighting unit sending controling circuit Q1 and drives by lighting unit Lighting unit transtation mission circuit U41 ports, the conducting of lighting unit transtation mission circuit U31 ports, communication section current loop；

When there is the receipt current signal of monitoring main frame in current loop, monitoring host power supply circuit is provided for current loop circuit Power supply, power supply passes through the F1 ends of monitoring main frame lightning protection circuit, the L1 ends of monitoring main frame lightning protection circuit, the monitoring electric current loop of main frame first Loop, the current loop of lighting unit first, lighting unit lightning protection circuit L11 ports, lighting unit lightning protection circuit F21 ports, Lighting unit sends isolation circuit diode D31-1, lighting unit and sends isolation circuit diode D31-3, lighting unit reception Isolation circuit U21-1 ports, lighting unit receive isolation circuit U21-2 ports, lighting unit and send isolation circuit U41-4 ports With lighting unit send isolation circuit U31-4 ports, lighting unit send isolation circuit U41-3 ports and lighting unit send every Isolation circuit diode D31-4, lighting unit are sent from circuit U 31-3 ports, lighting unit send isolation circuit D3-2, lighting Unit lightning protection circuit F1 ports, lighting unit lightning protection circuit L1 ports, the current loop of lighting unit second, monitoring main frame second Current loop, the L1 ports of monitoring main frame lightning protection circuit, the F2 ports of monitoring main frame lightning protection circuit, monitoring main frame send isolation Circuit diode D3-1, monitoring main frame send isolation circuit diode D3-3, monitoring load on host computers resistance R3, monitoring main frame and send Isolation circuit U4-4 ports and monitoring main frame send isolation circuit U3-4 ports, monitoring main frame send isolation circuit U4-3 ports and Monitoring main frame transmission isolation circuit U3-3 ports, monitoring main frame send isolation circuit diode D3-4, monitoring main frame and send and isolate Circuit diode D3-2, monitoring main frame send isolation circuit GND1；

When there is the receipt current signal of monitoring main frame in current loop, lighting unit receiving circuit connects from current loop The electric current receipt signal for receiving receives isolation circuit U2 and is converted into Rec1 output signals by lighting unit, then by lighting unit RXD1 signals feeding lighting unit communication alarming single-chip microcomputer is exported after waveform calibration circuit calibration.

8. the point type LED intelligence ignition devices of current ring communication are based on as claimed in claim 4, it is characterised in that described Monitoring main frame (7) includes power supply, single-chip microcomputer, display screen and current loop circuit；Change is provided with described monitoring host power supply plate Pressure isolation circuit, 24V out-put supplies, two-way voltage-stabilizing isolation and amplifier, alarm relay power supply, communication power supply, 5V out-put supplies, connect Plug-in unit interconnecting module；STM32F cores, connector interconnecting module, 485 interfaces, CAN are provided with the monitoring main frame master control borad Interface, audible alarm unit, clock circuit, 3.3V out-put supplies, LCD display interfaces；

Be provided with the monitoring main-machine communication plate monitoring main frame first current loop circuit, monitoring main frame second current loop circuit, Monitoring main frame the 3rd current loop circuit, monitoring main frame the 4th current loop circuit, alarm relay circuit, connector interconnecting module；

Vertically and horizontally lightning protection circuit, observation circuit second are vertically and horizontally prevented to be provided with observation circuit first on the monitoring main frame lighting protection plate Thunder and lightning road, observation circuit the 3rd vertically and horizontally lightning protection circuit, observation circuit the 4th vertically and horizontally lightning protection circuit, power input are vertically and horizontally prevented Thunder and lightning road.

9. the point type LED intelligence ignition devices of current ring communication are based on as claimed in claim 4, it is characterised in that described Lighting unit (3) includes power management module, main control singlechip, main Control point lamp detection module, adjacent modules, communication alarming monolithic Machine, communication alarming module；

Communication alarming single-chip microcomputer carries out the transmitting-receiving of signal, main control singlechip and power management module, phase by communication alert module Gang mould block, main Control point lamp detection module are connected；

Main Control point lamp detection module include king light voltage detecting, secondary modulating voltage detection, king light power detecting, pair lamp power detecting, Low voltage starting is detected and light detection.Detection signal is sent to main control singlechip, main control singlechip point by main Control point lamp detection module Analysis processing detection signal simultaneously controls the first Phototube Coupling, the second Phototube Coupling and the 3rd Phototube Coupling being in parallel respectively；First Phototube Coupling 1 is connected with metal-oxide-semiconductor field effect transistor actuating circuit；Second Phototube Coupling is sequentially connected pulse transformer, rectifying and wave-filtering electricity Road and fictitious load actuating of relay circuit；3rd Phototube Coupling is connected with filament transfer relay actuating circuit；Power module according to It is secondary to be driven by metal-oxide-semiconductor field effect transistor actuating circuit, fictitious load actuating of relay circuit, filament transfer relay and king light constant-current source Circuit or secondary lamp constant current source driving circuit；King light constant current source driving circuit drives king light LED load, and secondary lamp constant-current source drives electricity Road drive pair lamp LED load.

10. the intelligent ignition devices of the point type LED based on current ring communication as described in right wants 1 or 4, it is characterised in that pass through Design realizes many lighting units while positioning fault alarm during difference, after there is major-minor light source in lighting unit switch, lighting list First communication board works on power, and the single-chip microcomputer of lighting unit communication board reads lighting unit extension set coding first, passes through Lighting unit extension set coding obtains a random number as delay time；Then the timer of lighting unit communication board single-chip microcomputer from 0 starts with this random number to be overflow value trigger, after the completion of time delay, sends warning message, and timer clear 0, start Etc. monitoring main frame receipt signal to be received；After receipt signal is received, then terminate this time to send；If not receiving receipt signal, Then timer reset again since " by extension set encode obtain a random number be used as delay time " from judge, repeat Program；Monitoring main frame such as is at the state of signal to be received when not having an alarm signal；The elder generation when monitoring main frame and being subject to alarm signal It is useful signal to identify whether, if not then continue waiting for receiving, if useful signal then display alarm information on a display screen And send back and hold current signal；Continue waiting for receiving alarm signal after having sent receipt current signal, if receiving identical report The link that alert signal then skips display directly transmits receipt signal, is held if receiving different alarm signals and then showing and send back Signal；The process that monitoring main frame repeats identification, display, sends.