CN209554557U - A kind of headend equipment for elevator monitoring - Google Patents

Abstract

The utility model discloses a kind of headend equipments for elevator monitoring, including central microprocessor, battery, router, web camera, three mirror infrared human body mobile detectors and loudspeaker, central microprocessor is connected with GPRS module, power circuit block, emergency light, LORA module, speech synthesis unit, battery management unit, acceleration transducer, RS485 bus data receiving unit and CAN bus data receipt unit, the CAN bus of CAN bus data receipt unit connection elevator, RS485 the or MODBUS bus of RS485 bus data receiving unit connection elevator, the input voltage and battery of power circuit block connection transformer, battery management unit is connect with power circuit block and battery, web camera connects the connection of top wireless bridge , top wireless bridge be wirelessly connected lower part wireless bridge, three mirror infrared human body mobile detectors connect respectively with central microprocessor and battery.This equipment saves the monitoring cost of building elevator, can continue to keep monitoring when power is off.

Description

A kind of headend equipment for elevator monitoring

Technical field

The utility model relates to elevator safety monitoring technology fields, and in particular to a kind of front end for elevator monitoring is set It is standby.

Background technique

For a long time, the problem of monitoring of elevator is all a puzzlement each side is related to economy, two sides of practicability Face, it is currently used, there are the monitoring of cell duty room, network platform monitoring center.It has the disadvantage as follows:

1: cell duty room monitors, the video in elevator, is transferred to the aobvious of duty room by coaxial cable or wireless bridge Display screen, Security Personnel 24 hours on duty, when breaking down or is oppressive, needs transfer that maintenance personal is notified to come to handle.Have a power failure When, no image can not intercommunication, it is sometimes desirable to manually go investigation elevator either with or without oppressive one by one.

2: network platform server-type elevator monitoring is needed for elevator video to be sent to above server by network and be gone, can With remote access, but user is needed to put into biggish fund, builds big elevator and call for help platform, need to build special duty room, Large data server, it is also necessary to be equipped with special messenger 24 hours it is on duty, required labour cost will not be low, and elevator monitoring video is only It is visible to a few peoples.Have a power failure or when suspension, can not continue to monitor, must by artificial nucleus to it is oppressive situations such as, fault alarm There is still a need for be relayed to maintenance personal there for information.

Above-mentioned two classes elevator monitoring system, cannot all actively discover elevator hidden danger and failure, short of electricity ladder key message, generally Monitoring only has image, but lacks and judge that failure is most desirable: elevator operating floor, direction wait important critical parameter information, therefore Barrier and oppressive emergency require transfer, cannot judge automatically out, elevator whether there is oppressive or malfunction.It is common some to match The elevator monitoring equipment for setting GPRS module or NB-IoT Internet of Things module, is dependent on base station communication, in power failure suspension, no mobile phone When the GPRS network signal of base station or place that mobile phone signal is poor, can not also continue to monitor.

Utility model content

In order to solve defect existing for above-mentioned technology, the utility model provides a kind of headend equipment for elevator monitoring.

The utility model realizes that technical solution used by above-mentioned technical effect is:

A kind of headend equipment for elevator monitoring, including in the compartment top equipment for being located at car roof, the compartment being located in carriage Equipment, the top wireless bridge for being located at car bottom and the lower part wireless bridge being located in elevator shaft pit；

The compartment top equipment includes central microprocessor, battery and router, and the central microprocessor is connected with GPRS module, power circuit block, LORA module, speech synthesis unit, battery management unit, acceleration transducer, CAN are total The CAN bus of line data receipt unit and RS485 bus data receiving unit, CAN bus data receipt unit and elevator connects, The connection of the RS485 bus or MODBUS bus of RS485 bus data receiving unit and elevator, power circuit block connect power supply The low-voltage output and battery of transformer, battery management unit are connect with power circuit block and battery respectively；

Equipment includes web camera, three mirror infrared human body mobile detectors, emergency light and loudspeaker, institute in the compartment Web camera is stated to be connected to the router, the router with pass through NET network interface on circuit board and the center Microprocessor connection, it is described three mirror infrared human body mobile detector respectively in the compartment top equipment central microprocessor and Battery connection, the loudspeaker connect with the speech synthesis unit, the emergency light and the battery and it is described in Entreat microprocessor connection；

The top wireless bridge at cab bottom is connected to the router；

The lower part wireless bridge in elevator shaft pit connects internet.

Preferably, in a kind of above-mentioned headend equipment for elevator monitoring, the power circuit block includes power-off Detection circuit, current rectifying and wave filtering circuit, first order switch voltage-stabilizing circuit, the first reduction voltage circuit, the second reduction voltage circuit, second level switch Voltage regulator circuit and battery charging circuit, the power failure detection circuit and the current rectifying and wave filtering circuit are separately connected the low of transformer Output end is pressed, the current rectifying and wave filtering circuit output 24V DC voltage to the first order switch voltage-stabilizing circuit, open by the first order The DC voltage of voltage regulator circuit output 16.8V is closed, and respectively to the battery charging circuit, first reduction voltage circuit and institute The second reduction voltage circuit is stated, through first reduction voltage circuit output 12.8V DC voltage to the second level switch voltage-stabilizing circuit, and The positive 5V voltage of VCC5 is exported to the central microprocessor, GPRS module, LORA mould by the second level switch voltage-stabilizing circuit Block, speech synthesis unit, emergency light, CAN bus data receipt unit, RS485 bus data receiving unit, acceleration pass Sensor power supply, second reduction voltage circuit export 12.8V DC voltage to the web camera.

Preferably, in a kind of above-mentioned headend equipment for elevator monitoring, the power failure detection circuit includes a type Number photoelectrical coupler for being EL817, EL817's in a pole pin of the low-voltage output of transformer and the power failure detection circuit Be in series with rectifier diode DP6 and resistor RP3 between 1st pin of photoelectrical coupler, the low-voltage output of transformer it is another One pole pin is connect with the 2nd pin of the photoelectrical coupler of the EL817 in the power failure detection circuit, in the power failure detection circuit It is connected with filter capacitor CP6 and CP7 in parallel between the 2nd pin and the negative terminal of diode DP6 of the photoelectrical coupler of EL817, Filter capacitor CP6, CP7 and rectifier diode DP6 constitute half-wave rectifying circuit.

Preferably, in a kind of above-mentioned headend equipment for elevator monitoring, the current rectifying and wave filtering circuit includes constituting Diode DP1, DP2, DP3 and DP4 of rectification, and constitute the filter capacitor CP1 and CP2 of filtering, wherein rectifier diode DP1, DP2, DP3, DP4 form whole bridge rectifier circuit, and filter capacitor CP1, CP2 form filter circuit, and the low pressure of transformer is defeated One pole pin of outlet is connected between concatenated rectifier diode DP1 and rectifier diode DP3, and transformer low voltage output end is another One pole pin is connected between concatenated rectifier diode DP2 and rectifier diode DP4, and described filter capacitor CP1, CP2 are just 24V DC relay J1 is also connected between pole and GND grounding pin.

Preferably, in a kind of above-mentioned headend equipment for elevator monitoring, the first order switch voltage-stabilizing circuit, packet The DC switch-type integrated regulator chip of model XL4016 is included, the 3rd pin connects accumulation of energy inductance LP1 and afterflow two Pole pipe DP5 is filtered for exporting the direct current of positive 16.8V, then by filter capacitor CP3, CP4, is then accessed by concatenated two pole First reduction voltage circuit of pipe DP8, DP9, DP10, DP11, DP12 and DP13 composition, the first reduction voltage circuit output 12.8V, and connect the 1st pin of the DC switch-type integrated regulator chip of the model LM2576, diode Second reduction voltage circuit of DP15, DP16, DP17, DP18, DP19 and DP20 composition, output 12.8V take the photograph to external network Camera feeder ear.

Preferably, in a kind of above-mentioned headend equipment for elevator monitoring, the second level switch voltage-stabilizing circuit packet The DC switch-type integrated regulator chip of model LM2576 is included, the 2nd pin of voltage output end is connected with accumulation of energy inductance LP2 and sustained diode P7 exports positive 5V to filter capacitor CP8 and filter capacitor CP9, filter capacitor through accumulation of energy inductance LP2 CP8 and filter capacitor CP9 are in parallel, and cathode ground connection, the positive 5V of the VCC5 exported after filtering gives the central microprocessor, GPRS mould Block, LORA module, speech synthesis unit, emergency light, CAN bus data receipt unit, RS485 bus data receive single Member, acceleration transducer power supply.

Preferably, in a kind of above-mentioned headend equipment for elevator monitoring, the battery charging circuit includes type Number for the integrated charge chip of UC 3906 and the voltage comparator chip of model LM393, first order switch voltage-stabilizing electricity Road output 16.8V be connected to the model UC 3906 integrated charge chip the 3rd pin and the 5th pin, described first The 16.8V of grade switch voltage-stabilizing output is connected to the emitter of PNP transistor TP1 by resistance RP8, and the UC3906 is integrated to be filled No. 16 pin of electrical chip is connected to the base stage of the transistor TP1, the transistor TP1 collector be connected to it is high-power every Anode from diode DP21 and DP22, battery reverse power supply when for preventing from having a power failure；The anode of the battery is connected to Diode DP21 and DP22 negative terminal, the cathode of the battery are connected to the GND in the battery charging circuit, the LM393 2nd pin of voltage comparator chip is connected to the 10th pin of the UC3906 integrated charge chip, when battery is full of, The light emitting diode BRTTEAY of No. 1 pin connection of the LM393 voltage comparator chip is lighted.

Preferably, in a kind of above-mentioned headend equipment for elevator monitoring, the CAN bus data receipt unit packet The chip of model MCP2515 and model TJA1050 are included, the chip of the model TJA1050 accesses Elevator CAN Bus, And connect with the chip of model MCP2515, the chip of the model MCP2515 passes through spi bus and the middle broken ends of fractured bone and institute Central microprocessor connection is stated, No. 8 pin of TJA1050 is exported by resistance RC3 and the second level switch voltage-stabilizing circuit VCC5 positive 5V voltage connection.

Preferably, in a kind of above-mentioned headend equipment for elevator monitoring, the RS485 bus data receiving unit Chip including model MAX483, the chip of the model MAX483 by No. 1 pin RO data output end and it is described in Entreat microprocessor connection, the end A, B and elevator that the chip of the model MAX483 passes through its No. 6 pin and No. 7 pin RS485 with MODBUS bus be connected, No. 2 pin, No. 3 pin and the GND phase of the chip of the model MAX483 Connection.

Preferably, in a kind of above-mentioned headend equipment for elevator monitoring, the mobile detection of three mirror infrared human body Device is the three mirror Passive Infrared Sensor of wide-angle intelligence of Ai Lifuweier XC-5XT model, the mobile detection of three mirror infrared human body The signal output pin of device is connected with the photoelectrical coupler of model EL817, the electricity of the three mirror infrared human body mobile detector Source is connected respectively to 12.8V and GND, and the signal output end of the three mirror infrared human body mobile detector is connected to light-emitting diodes Pipe LT1 negative terminal, then it is connected to through resistance R1 the 2nd pin of photoelectrical coupler EL817, the photoelectrical coupler EL817 the 1st draws Foot is connected to 12.8V by resistance R2, and No. 4 pin of the photoelectrical coupler EL817 is being connected to VCC5 just by resistance R3 5V voltage, No. 4 pin of the photoelectrical coupler EL817 are connected to the signal input part of the central microprocessor, are used for Human body infrared detection.

The beneficial effects of the utility model are: the headend equipment of the utility model passes through CAN, RS485 and MODBUS bus The signals such as the fault-signal, floor, up-downlink direction of elevator can be intercepted, for judging whether elevator is in maintenance, operates normally Or malfunction.There are situations such as emergency stop, Yi Ji electricity in acceleration transducer, the three detectable operations of mirror infrared human body mobile detector It is whether oppressive in terraced.Router and wireless bridge are for video in elevator data collected when will not have a power failure usually and carriage Image is sent into the elevator data server in network simultaneously.Spare battery can be used as backup power source, In after elevator power failure Oppressive rescue signal or fault-signal can be sent into elevator data by included GPRS module and LORA module when power failure suspension Server.GPRS module after putting through, can also pass through Chinese in failure or power failure for dialing maintenance personal's phone Chipspeech, inform its elevator faults state and whether the voice messagings such as oppressive and failure elevator detail location.Separately Outside, when having a power failure, when detecting someone inside elevator, it will automatically turn on emergency light.User is near elevator, with same LORA module device and Accessory Battery unit, by LORA communication receive elevator normal operation/malfunction, The elevator datas such as floor, up-downlink direction, and after having a power failure whether the information such as oppressive, realize without network, without GPRS base station signal When elevator monitoring.The headend equipment is that one kind is at low cost, and the oppressive alarm of elevator faults is not necessarily to transfer, and is not had a power failure, broken Net or the elevator Real-time Monitor Technique scheme influenced without situations such as mobile phone GPRS base station signal.

Detailed description of the invention

Fig. 1 is the general frame figure of the utility model；

Fig. 2 is the circuit module connection figure of power circuit block described in the utility model；

Fig. 3 is the circuit diagram of power circuit block described in the utility model；

Fig. 4 is the circuit diagram of CAN bus data receipt unit described in the utility model；

Fig. 5 is the circuit diagram of three mirror infrared human body mobile detector described in the utility model；

Fig. 6 is the circuit diagram of battery charging circuit described in the utility model；

Fig. 7 is the circuit diagram of RS485 bus data receiving unit described in the utility model；

Fig. 8 be the same building elevator group of the utility model in, the top wireless bridge of different lift car bottoms with wherein The many-to-one relationship schematic diagram of lower part wireless bridge in the elevator shaft pit of one lift car.

Specific embodiment

It is practical to this referring to Figure of description and specific embodiment to make to make the utility model further understanding It is novel to be described further:

As shown in Figure 1, the utility model discloses a kind of headend equipments for elevator monitoring, including being located at car roof Compartment top equipment is located at equipment in the compartment in carriage, is located at the top wireless bridge of car bottom and is located in elevator shaft pit Lower part wireless bridge.Compartment top equipment includes central microprocessor, battery and router, and central microprocessor is connected with GPRS Module, power circuit block, LORA module, speech synthesis unit, battery management unit, acceleration transducer, CAN bus number According to receiving unit and RS485 bus data receiving unit.The connection of the CAN bus of CAN bus data receipt unit and elevator, The connection of the RS485 bus or MODBUS bus of RS485 bus data receiving unit and elevator.Power circuit block connects transformer Low-voltage output and battery, battery management unit connect with power circuit block and battery respectively.

Equipment includes that web camera, three mirror infrared human body mobile detectors, emergency light and loudspeaker, network are taken the photograph in compartment Camera is connect with router, and router is connect by the NET network interface on circuit board with central microprocessor.The three infrared people of mirror Body mobile detector respectively in compartment top equipment central microprocessor and battery connect, loudspeaker and speech synthesis unit connect It connects.Emergency light is connect with battery and central microprocessor, in elevator power failure, and it is oppressive in carriage when open emergency and shine It is bright.The model ADXL345 of acceleration transducer.The top wireless bridge at cab bottom is connect with router, elevator shaft pit In lower part wireless bridge connect internet.

In the preferred embodiment of the utility model, further, as shown in Fig. 2, power circuit block includes power-off inspection Slowdown monitoring circuit, current rectifying and wave filtering circuit, first order switch voltage-stabilizing circuit, the first reduction voltage circuit, second level switch voltage-stabilizing circuit, the second drop Volt circuit and battery charging circuit.The power failure detection circuit and current rectifying and wave filtering circuit are separately connected the low pressure output of transformer End, the current rectifying and wave filtering circuit export 24V DC voltage to first order switch voltage-stabilizing circuit.First order switch voltage-stabilizing circuit difference is defeated The DC voltage of 16.8V is defeated through the first reduction voltage circuit to battery charging circuit, the first reduction voltage circuit and the second reduction voltage circuit out 12.8V DC voltage is to the second level switch voltage-stabilizing circuit out, then by the positive 5V direct current of second level switch buck circuit output For voltage to central microprocessor, the second reduction voltage circuit exports DC voltage 12.8V to web camera.Specifically, such as Fig. 3 institute Show, which includes the photoelectrical coupler of a model EL817, a pole pin of the low-voltage output of transformer with Rectifier diode DP6 and resistor are in series between 1st pin of the photoelectrical coupler of the EL817 in the power failure detection circuit RP3, another pole pin of the low-voltage output of transformer, the with the photoelectrical coupler of the EL817 in the power failure detection circuit the 2nd Pin connects, and the 2nd pin of the photoelectrical coupler of the EL817 in the power failure detection circuit is connected with simultaneously between diode DP6 The filter capacitor CP6 and filter capacitor CP7 of connection.Filter capacitor CP6, CP7 and rectifier diode CP7 form half-wave rectifying circuit, When not having a power failure, filter capacitor CP6 and filter capacitor CP7 anode have certain voltage and exist, and electric current passes through resistor After RP3 current limliting, the 1st pin of the photoelectrical coupler of the EL817 in the power failure detection circuit is flowed through, is then flowed out from the 2nd pin, Return to the negative terminal of filter capacitor CP6 and filter capacitor CP7.At this point, the photoelectrical coupler EL817 in the power failure detection circuit is led Logical, corresponding 4th pin of photoelectrical coupler EL817 exports a low level at this time.When having a power failure, due to filter capacitor CP6 and filter capacitor CP7 does not have voltage presence, and the 1st pin of photoelectrical coupler EL817 and the 2nd, which are drawn between two feet, does not have electric current It flows through, at this point, the corresponding output high level of the 4th pin of photoelectrical coupler EL817, by central microprocessor, to the photoelectricity Whether the level sampling of the 4th pin of coupler EL817, can detecte by the height of level and powered off.

Further, as shown in figure 3, the current rectifying and wave filtering circuit includes diode DP1, DP2, the DP3 for constituting rectification And DP4, and the filter capacitor CP1 and CP2 of filtering are constituted, wherein rectifier diode DP1, DP2, DP3 and DP4 forms full-bridge Formula rectification circuit, filter capacitor CP1 and CP2 form filter circuit, and a pole pin of the low-voltage output of transformer is connected to string Between the diode DP1 and diode DP3 of connection, another pole pin of transformer low voltage output end is connected to concatenated diode DP2 Between diode DP4.24V DC relay is also connected between the anode and GND grounding pin of filter capacitor CP1, CP2 J1.First order switch voltage-stabilizing circuit includes the DC switch-type integrated regulator chip of model XL4016, and the 3rd pin connects Accumulation of energy inductance LP1 and sustained diode P5 is met, is filtered for exporting the direct current of positive 16.8V, then by filter capacitor CP3 and CP4 Then wave accesses the first reduction voltage circuit being made of concatenated diode DP8, DP9, DP10, DP11, DP12 and DP13.This One reduction voltage circuit exports 12.8V, and connects the 1st pin of the DC switch-type integrated regulator chip of model LM2576. Diode DP15, DP16, DP17, DP18, DP19 and DP20 form the second reduction voltage circuit, output 12.8V to external network shooting Machine feeder ear.Second level switch voltage-stabilizing circuit includes the DC switch-type integrated regulator chip of model LM2576, electricity Pressure the 2nd pin of output end is connected with accumulation of energy inductance LP2 and sustained diode P7, exports positive 5V to filtering through accumulation of energy inductance LP2 Capacitor CP8 and filter capacitor CP9, filter capacitor CP8 and filter capacitor CP9 are in parallel, cathode ground connection, through the positive 5V of filtered VCC5 To central microprocessor, GPRS module, LORA module, speech synthesis unit, emergency light, CAN bus data receiver list Member, the power supply of RS485 bus data receiving unit, acceleration transducer.

Further, as shown in fig. 6, the battery charging circuit include the integrated charge chip of model UC 3906 with And voltage comparator LM393 chip, UC3906 are the storage battery dedicated charging chips that the U.S. produces, it is possible to provide to sealing-type lead-acid Control and detection function needed for battery charging, and the control of optimized charge parameter is provided, it is ensured that the service life of battery with Task performance.Recharge logic control and detection function needed for it has been internally integrated realization sealed lead acid storage battery optimal charge, And have that environment temperature is adaptive, charge and discharge degree is adaptive and current limliting, under-voltage protection function.Its temperature-compensating skill used Art can be such that various charging conversion voltages change, sealed lead acid storage battery with the variation of sealed lead acid storage battery voltage temperature coefficient Best charge state is attained by within the scope of very wide temperature.The 16.8V of first order switch voltage-stabilizing circuit output, is connected to type Number for UC 3906 integrated charge chip No. 3 pin and No. 5 pin.The 16.8V of first order switch voltage-stabilizing output passes through Resistance RP8 is connected to the emitter of PNP transistor TP1, and No. 16 pin of integrated charge chip UC3906 is connected to crystal The base stage of pipe TP1 controls automatic charging process.Transistor TP1 collector is connected to high-power isolating diode DP21 and DP22 Anode, prevent have a power failure when battery reverse power supply.The anode of 12V battery is connected to the negative terminal of diode DP21 and DP22. The cathode of battery is connected to the GND in the battery charging circuit, and the 2nd pin of voltage comparator LM393 chip is connected to No. 10 pin of integrated charge chip UC3906, when battery is full of, No. 1 pin of voltage comparator LM393 chip The light emitting diode BRTTEAY of connection can be lighted.When not having a power failure, relay J1 is in attracting state, and normally-closed contact is disconnected It opens, battery is in charged state, and when having a power failure, the normally-closed contact closure of relay J1, battery positive voltage passes through relay J1 Normally-closed contact then export positive 5V to center to No. 1 pin input end of second level switch voltage-stabilizing circuit chip LM2576 Microprocessor, GPRS module, LORA module, speech synthesis unit, emergency light, CAN bus data receipt unit, RS485 Bus data receiving unit, acceleration transducer power supply.

Specifically, in the preferred embodiment of the utility model, as shown in figure 4, CAN bus data receipt unit includes type It number is the chip of MCP2515 and model TJA1050, the chip of model TJA1050 accesses CAN bus, and and model The chip of MCP2515 connects.The chip of model MCP2515 is connected by spi bus and the middle broken ends of fractured bone and central microprocessor It connects, realizes the reception of data.The interrupt output pin of the chip of model MCP2515, is connected to the outside of central microprocessor The middle broken ends of fractured bone, if the chip of MCP2515 receives new CAN data, No. 12 pin of the chip of MCP2515 if, triggers center Microprocessor enters interrupt routine, and central microprocessor after entering the interrupt, is completed by spi bus to the chip of MCP2515 Reading data processing.Meanwhile CAN_INT light emitting diode is lighted when the chip of MCP2515 receives new data, it is micro- to center After the completion of processor is to data processing, which extinguishes.

Further, in the preferred embodiment of the utility model, three mirror infrared human body mobile detectors are Ai Lifuwei The three mirror Passive Infrared Sensor of wide-angle intelligence of your XC-5XT model.As shown in figure 5, the three mirror infrared human body mobile detector Signal output pin is connected with the photoelectrical coupler of model EL817, the signal output pin of the photoelectrical coupler of the EL817 Connect the signal receiving end of the central microprocessor.The power end of the three mirror infrared human body mobile detector is connected respectively to The signal output end of 12.8V and GND, three mirror infrared human body mobile detectors are connected to light emitting diode LT1 negative terminal, then through resistance R1 is connected to the 2nd pin of photoelectrical coupler EL817, and the 1st foot of photoelectrical coupler EL817 is connected to by resistance R2 The 4th foot of 12.8V, photoelectrical coupler EL817 is connected to the positive 5V voltage of VCC5, photoelectrical coupler EL817 by resistance R3 The 4th pin be connected to the signal input part of central microprocessor, detected for human body infrared.

Specifically, photoelectrical coupler EL817 is used to do level in the circuit diagram of three mirror infrared human body mobile detectors Isolation, three mirror infrared human body mobile detectors are mounted on inside lift car, if being detected with human motion, signal output End then disconnects, and light emitting diode LT1 extinguishes, and photoelectrical coupler EL817 is not turned on, and the 4th foot exports high level.In elevator Carriage nobody when, light emitting diode LT1 is lighted, and the 4th foot of photoelectrical coupler EL817 exports low level, central microprocessor By judging that the low and high level of the 4th foot of EL817 changes, so that it may with know inside lift car whether someone.

Specifically, in the preferred embodiment of the utility model, as shown in fig. 7, RS485 bus data receiving unit includes The chip of model MAX483, the 6th pin of the chip of model MAX483, A, B of the 7th pin are terminated into elevator RS485 or MODBUS bus.No. 1 pin RO data output end of MAX483 chip is connected with the end RXD of central microprocessor It connects, listens to the bus data of elevator, for central microprocessor processing.

Specifically, the working principle of the power circuit block are as follows: from transformer input 220V exchange, output exchanges 17V, By in current rectifying and wave filtering circuit diode DP1, DP2, DP3 and DP4 rectification, then through constitute filtering filter capacitor CP1 and CP2 is filtered, and obtains 24V DC voltage, and the dc switch for entering first order switch voltage-stabilizing circuit model XL4016 is steady In die mould IC chip, and the DC voltage that exports 16.8V or so, then filtered by filter capacitor CP3 and filter capacitor CP4 Wave, then through the first reduction voltage circuit.First reduction voltage circuit be specifically made of DP8, DP9, DP10, DP11, DP12 and DP13 two Pole pipe series connection reduction voltage circuit drops to about 12.8V, and the direct current for entering model LM2576 in the switch voltage-stabilizing circuit of the second level is opened Voltage regulation type IC chip is closed, is exported by the 2nd pin of DC switch-type integrated regulator chip LM2576, then through filtering Wave capacitor CP8 and filter capacitor CP9 filtering after, finally export 5V in headend equipment central microprocessor, GPRS module, Power circuit block, LORA module, speech synthesis unit, battery management unit, acceleration transducer and CAN bus number It powers according to receiving unit.After wherein 16.8V voltage also drops to 12.8V voltage via the second reduction voltage circuit, for the network in carriage Video camera power supply, in addition 16.8V also supplies the battery charging circuit being made of the integrated charge chip of model UC 3906. When having a power failure, the electric current come out from battery positive voltage is connected to DP13 negative terminal through relay J1 normally-closed contact, keep complete machine and Three mirror infrared human body mobile detectors power supplies, can be continued to test after power failure inside carriage whether someone, this moment diode DP8, DP9, DP10, DP11, DP12 and DP13 also act as buffer action, battery reverse power supply when preventing from having a power failure, anti-to stop loss the first order The dc switch voltage regulation type IC chip of model XL4016 in switch voltage-stabilizing circuit.When power failure, building where elevator Network is similarly in suspension state, therefore web camera does not work, and meaningless consumption electric energy is avoided, to extend battery Working time.

In the preferred embodiment of the utility model, the chip of central microprocessor model ATMEGA64, LORA module Using Chengdu 100,000,100 spy E32_TTL (remote 8 kilometers) ad hoc network module.Speech synthesis unit chip selects Iflytek model For the serial ports Chinese speech synthesis chip of XFS3031.In Lift out of order, central microprocessor issues corresponding triggering letter Number, the mobile phone of corresponding maintenance personal is dialed by GPRS module, while the serial ports Chinese speech synthesis chip of XFS3031 is touched The sound message of hair synthesis corresponding failure, after the mobile phone for putting through corresponding maintenance personal, by the serial ports Chinese speech synthesis chip By the synthesis elevator faults state, the message such as elevator position language breath is transmitted to GPRS module, answers for maintenance personal.Meanwhile The serial ports Chinese speech synthesis chip is also by the comfort sound message of synthesis, and by speech amplifier, the loudspeaker in carriage are broadcast It releases, pacifies indicator of trapped personnel.When power failure, which detects, has oppressive in carriage, emergency light can be also lighted automatically. The lower part wireless bridge of top wireless bridge sum is the wireless bridge of model lafalink.As shown in figure 8, to take into account into This considerations of, only need to be at the hole bottom of an elevator shaft wherein in the following, installation if the nearest several elevators in the same building One lower part wireless bridge makes the top wireless bridge of the cage bottom of other elevators and the lower part wireless bridge form many-one Wireless connection relationship, while meeting the monitoring data information for receiving multiple elevators.

In conclusion the headend equipment of the utility model can intercept the event of elevator by CAN, RS485 and MODBUS bus Hinder the signals such as signal, floor, up-downlink direction, for judging whether elevator is in maintenance, normal operation or malfunction.Accelerate Have in degree sensor, the three detectable operations of mirror infrared human body mobile detector whether oppressive in situations such as emergency stop and elevator.Road For elevator data collected when will not have a power failure usually and carriage inner video image while net is sent by device and wireless bridge Elevator data server in network.Spare battery can be used as backup power source after elevator power failure, in power failure suspension Shi Ketong Included GPRS module and LORA module are crossed, oppressive rescue signal or fault-signal are sent into elevator data server.GPRS mould Block can also in failure or power failure for dialing maintenance personal's phone, after putting through, through Chinese speech synthesis chip, Inform its elevator faults state and whether the voice messagings such as oppressive and failure elevator detail location.In addition, when having a power failure, when It detects someone inside elevator, will automatically turn on emergency light.User near elevator, with same LORA module device and Accessory Battery unit receives normal operation/malfunction, the floor, uplink and downlink side of elevator by LORA communication To equal elevator datas, and after having a power failure whether the information such as oppressive, realize without network, without GPRS base station signal when elevator prison Control.The headend equipment be it is a kind of at low cost, the oppressive alarm of elevator faults is not necessarily to transfer, and is not had a power failure, suspension or without mobile phone The elevator Real-time Monitor Technique scheme that situations such as GPRS base station signal influences.

Basic principles, main features, and advantages of the present invention has been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model Kind changes and improvements, these changes and improvements are both fallen in the range of claimed invention, the requires of the utility model Protection scope defined by appended claims and its equivalent.

Claims (10)

1. a kind of headend equipment for elevator monitoring, which is characterized in that including being located at the compartment top equipment of car roof, being located at carriage In compartment in equipment, the lower part wireless bridge that is located at the top wireless bridge of car bottom and is located in elevator shaft pit；

The compartment top equipment includes central microprocessor, battery and router, and the central microprocessor is connected with GPRS mould Block, power circuit block, LORA module, speech synthesis unit, battery management unit, acceleration transducer, CAN bus data The CAN bus of receiving unit and RS485 bus data receiving unit, CAN bus data receipt unit and elevator connects, RS485 The connection of the RS485 bus or MODBUS bus of bus data receiving unit and elevator, power circuit block connect power transformer Low-voltage output and battery, battery management unit connect with power circuit block and battery respectively；

Equipment includes web camera, three mirror infrared human body mobile detectors, emergency light and loudspeaker, the net in the compartment Network video camera is connected to the router, the router with pass through NET network interface on circuit board and the micro- place in center Manage device connection, it is described three mirror infrared human body mobile detector respectively in the compartment top equipment central microprocessor and electric power storage Pond connection, the loudspeaker are connect with the speech synthesis unit, and the emergency light and the battery and the center are micro- Processor connection；

The top wireless bridge at cab bottom is connected to the router；

The lower part wireless bridge in elevator shaft pit connects internet.

2. a kind of headend equipment for elevator monitoring according to claim 1, which is characterized in that the power circuit mould Block include power failure detection circuit, current rectifying and wave filtering circuit, first order switch voltage-stabilizing circuit, the first reduction voltage circuit, the second reduction voltage circuit, Second level switch voltage-stabilizing circuit and battery charging circuit, the power failure detection circuit and the current rectifying and wave filtering circuit are separately connected The low-voltage output of transformer, the current rectifying and wave filtering circuit export 24V DC voltage to the first order switch voltage-stabilizing circuit, institute The DC voltage of first order switch voltage-stabilizing circuit output 16.8V is stated, and respectively to the battery charging circuit, first drop Volt circuit and second reduction voltage circuit are switched through first reduction voltage circuit output 12.8V DC voltage to the second level Voltage regulator circuit, and the positive 5V voltage of VCC5 is exported to the central microprocessor, GPRS mould by the second level switch voltage-stabilizing circuit Block, LORA module, speech synthesis unit, emergency light, CAN bus data receipt unit, RS485 bus data receive single Member, acceleration transducer power supply, second reduction voltage circuit export 12.8V DC voltage to the web camera.

3. a kind of headend equipment for elevator monitoring according to claim 2, which is characterized in that the outage detection electricity Road includes the photoelectrical coupler of a model EL817, the pole pin and the power failure detection circuit of the low-voltage output of transformer In EL817 photoelectrical coupler the 1st pin between be in series with rectifier diode DP6 and resistor RP3, the low pressure of transformer Another pole pin of output end is connect with the 2nd pin of the photoelectrical coupler of the EL817 in the power failure detection circuit, power-off inspection Filter capacitor in parallel is connected between the 2nd pin and the negative terminal of diode DP6 of the photoelectrical coupler of EL817 in slowdown monitoring circuit CP6 and CP7, filter capacitor CP6, CP7 and rectifier diode DP6 constitute half-wave rectifying circuit.

4. a kind of headend equipment for elevator monitoring according to claim 2, which is characterized in that the rectifying and wave-filtering electricity Road includes diode DP1, DP2, DP3 and the DP4 for constituting rectification, and constitutes the filter capacitor CP1 and CP2 of filtering, wherein whole It flows diode DP1, DP2, DP3, DP4 and forms whole bridge rectifier circuit, filter capacitor CP1, CP2 form filter circuit, transformer A pole pin of low-voltage output be connected between concatenated rectifier diode DP1 and rectifier diode DP3, transformer low voltage Another pole pin of output end is connected between concatenated rectifier diode DP2 and rectifier diode DP4, the filter capacitor CP1, 24V DC relay J1 is also connected between the anode and GND grounding pin of CP2.

5. a kind of headend equipment for elevator monitoring according to claim 2, which is characterized in that the first order switch Voltage regulator circuit, the DC switch-type integrated regulator chip including model XL4016, the 3rd pin connect accumulation of energy inductance LP1 and sustained diode P5 is filtered for exporting the direct current of positive 16.8V, then by filter capacitor CP3, CP4, is then accessed First reduction voltage circuit being made of concatenated diode DP8, DP9, DP10, DP11, DP12 and DP13, first decompression Circuit output 12.8V, and the 1st pin of the DC switch-type integrated regulator chip of the model LM2576 is connected, two Second reduction voltage circuit of pole pipe DP15, DP16, DP17, DP18, DP19 and DP20 composition, output 12.8V to external net Network video camera feeder ear.

6. a kind of headend equipment for elevator monitoring according to claim 2, which is characterized in that the second level switch Voltage regulator circuit includes the DC switch-type integrated regulator chip of model LM2576, the connection of the 2nd pin of voltage output end There is accumulation of energy inductance LP2 and sustained diode P7, exports positive 5V to filter capacitor CP8 and filter capacitor through accumulation of energy inductance LP2 CP9, filter capacitor CP8 and filter capacitor CP9 are in parallel, cathode ground connection, and the positive 5V of the VCC5 exported after filtering is micro- to the center Processor, GPRS module, LORA module, speech synthesis unit, emergency light, CAN bus data receipt unit, RS485 are total Line data receipt unit, acceleration transducer power supply.

7. a kind of headend equipment for elevator monitoring according to claim 4, which is characterized in that the battery charging Circuit includes the integrated charge chip of model UC 3906 and the voltage comparator chip of model LM393, the first order The 3rd pin and the 5th for the integrated charge chip that the 16.8V of switch voltage-stabilizing circuit output is connected to the model UC3906 draws The 16.8V of foot, the first order switch voltage-stabilizing output is connected to the emitter of PNP transistor TP1 by resistance RP8, described No. 16 pin of UC3906 integrated charge chip is connected to the base stage of the transistor TP1, and the transistor TP1 collector connects It is connected to the anode of high-power isolating diode DP21 and DP22, battery reverse power supply when for preventing from having a power failure；The battery Anode be connected to diode DP21 and DP22 negative terminal, the cathode of the battery is connected in the battery charging circuit The 2nd pin of GND, the LM393 voltage comparator chip are connected to the 10th pin of the UC3906 integrated charge chip, In When battery is full of, the light emitting diode BRTTEAY of the 1st pin connection of the LM393 voltage comparator chip is lighted.

8. a kind of headend equipment for elevator monitoring according to claim 2, which is characterized in that the CAN bus number It include the chip of model MCP2515 and model TJA1050, the chip access of the model TJA1050 according to receiving unit Elevator CAN Bus, and being connect with the chip of model MCP2515, the chip of the model MCP2515 by spi bus with And the middle broken ends of fractured bone is connect with the central microprocessor, the 8th foot of TJA1050 passes through resistance RC3 and the second level switch voltage-stabilizing The positive 5V voltage connection of the VCC5 of circuit output.

9. a kind of headend equipment for elevator monitoring according to claim 1, which is characterized in that the RS485 bus Data receipt unit includes the chip of model MAX483, and the chip of the model MAX483 is exported by the 1st pin RO data End is connect with the central microprocessor, and the chip of the model MAX483 passes through the end A, B of its 6th pin and the 7th pin It is connected with RS485 the and MODBUS bus of elevator, the 2nd pin, the 3rd pin and the GND of the chip of the model MAX483 It is connected.

10. a kind of headend equipment for elevator monitoring according to claim 1, which is characterized in that three mirror is infrared Human motion detector is the three mirror Passive Infrared Sensor of wide-angle intelligence of Ai Lifuweier XC-5XT model, and three mirror is infrared The signal output pin of human motion detector is connected with the photoelectrical coupler of model EL817, and the three mirror infrared human body moves The power end of dynamic detector is connected respectively to 12.8V and GND, and the signal output end of the three mirror infrared human body mobile detector connects It is connected to light emitting diode LT1 negative terminal, then is connected to the 2nd pin of photoelectrical coupler EL817, the photoelectrical coupler through resistance R1 The 1st foot of EL817 is connected to 12.8V by resistance R2, and the 4th foot of photoelectrical coupler EL817 is connected to VCC5 by resistance R3 Positive 5V voltage, the 4th pin of the photoelectrical coupler EL817 are connected to the signal input part of the central microprocessor, are used for Human body infrared detection.