CN207001935U

CN207001935U - Elevator monitoring system

Info

Publication number: CN207001935U
Application number: CN201720630774.1U
Authority: CN
Inventors: 李力; 周涛; 胡鹏
Original assignee: Shenzhen Jin Made Video Polytron Technologies Inc
Current assignee: Shenzhen Jin Made Video Polytron Technologies Inc
Priority date: 2017-06-01
Filing date: 2017-06-01
Publication date: 2018-02-13
Anticipated expiration: 2027-06-01

Abstract

The utility model discloses a kind of elevator monitoring system, including video camera and demodulated equipment, the video camera includes master chip, imaging sensor and the first modular converter, and first modular converter is used to network signal being converted to analog signal；The video camera is arranged in elevator, and the master chip is connected with imaging sensor and the first modular converter respectively, and first modular converter is connected by the coaxial cable of elevator with demodulated equipment.By the way that picture signal is switched into network signal, then switch to analog signal, and be transmitted by coaxial cable, transmission range can be increased, improve laser propagation effect, and isolation, lightning protection, antistatic, strong antijamming capability, it is simultaneously different to change elevator configuration, significantly reduce engineering cost.

Description

Elevator monitoring system

Technical field

It the utility model is related to monitoring field, more particularly to a kind of elevator monitoring system.

Background technology

Dome-type camera basic function currently on the market is all similar, but in some special environment, than Such as elevator, the pattern of building of most of elevator monitoring systems is all the wire transmission pattern using analog signal, and elevator is one The complicated carrier of environment, the motor outside its car, the power supply of power supply can produce huge interference signal when operation, image Machine signal is easily interfered when transmission, and analog video camera script resolution ratio more causes image effect with regard to relatively low Demand far can not be reached.If be transmitted using web camera, need to rearrange netting twine inside elevator, both increased and applied Work cost brings very big inconvenience to construction again, and transmission range is also significantly limited, can not meet customer need.

In addition, substantially only supporting static character addition using to the monitoring system on elevator, it is superimposed in vision signal The fix informations such as camera position, date, time, function seem single, it is impossible to the running status of Dynamic Announce equipment and position Information, the centralized management to monitoring are made troubles.

Utility model content

Technical problem to be solved in the utility model is：A kind of elevator monitoring system is provided, is not changing elevator circuit On the premise of layout, increase the transmission range of monitoring data and ensure laser propagation effect.

In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of elevator monitoring system, including Video camera and demodulated equipment, the video camera include master chip, imaging sensor and the first modular converter, first modulus of conversion Block is used to network signal being converted to analog signal；The video camera is arranged in elevator, and the master chip passes with image respectively Sensor and the connection of the first modular converter, first modular converter are connected by the coaxial cable of elevator with demodulated equipment.

Further, first modular converter includes the first change-over circuit, and first change-over circuit includes connecting successively The conversion chip and bnc interface change-over circuit connect, the conversion chip are connected with master chip, the bnc interface change-over circuit with Coaxial cable connects.

Further, the conversion chip includes the IP175B chips and IP116 chips being sequentially connected, the IP175B cores Piece connects master chip, and the IP116 chips connect bnc interface change-over circuit.

Further, the bnc interface change-over circuit include associate coil, the first electric capacity, the second electric capacity, the 3rd electric capacity, 4th electric capacity, first resistor, second resistance, the first TVS diode, the second TVS diode and BNC socket, the associate coil Including first coil and the second coil；

One end of first electric capacity connects the conversion chip, and the other end connects one end of first coil；Described second One end of electric capacity connects the conversion chip, and the other end connects the other end of first coil；One end of second coil passes through 3rd electric capacity connects the first pin of BNC socket with first resistor, the second pin of other end connection BNC socket, three-prong, 4th pin and the 5th pin；The other end of second coil is also grounded；One end of second coil passes through described first TVS diode connects the other end of the second coil；First pin of one end connection BNC socket of the second resistance, the other end Connect one end of the 4th electric capacity；The other end of 4th electric capacity connects the other end of second coil；2nd TVS bis- First pin of one end connection BNC socket of pole pipe, the other end connect the other end of second coil.

Further, in addition to the photodetector that is arranged between elevator interlayer board, the inside of the video camera is also set There is the second modular converter, the photodetector is connected by second modular converter with master chip.

Further, the photodetector is provided with the first photo-coupler and the second photo-coupler；Second conversion Module includes the second change-over circuit, and second change-over circuit includes two change-over circuits, and a change-over circuit connects main core respectively Piece and the first photo-coupler, another change-over circuit connect master chip and the second photo-coupler respectively；

The change-over circuit includes mos pipes, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance and the 5th electric capacity； The photodetector connects the grid of the mos pipes by 3rd resistor, and the drain electrode of the mos pipes is connected by the 4th resistance Master chip, the source ground of the mos pipes；The grid of the mos pipes passes through the 5th resistance eutral grounding；The drain electrode of the mos pipes is led to Cross the 6th resistance connection 3.3V voltage；One end of the 6th resistance connection voltage passes through the 5th capacity earth.

Further, the video camera also includes light sensor and infrared lamp drive module, the light sensor and Infrared lamp drive module is connected with the master chip respectively.

Further, the video camera also includes sound acquisition module, and the sound acquisition module connects with the master chip Connect.

Further, in addition to display device, the display device are connected by netting twine with the demodulated equipment.

Further, in addition to interchanger, the demodulated equipment connect the display device by the interchanger.

The beneficial effects of the utility model are：The picture signal collected is transmitted to master chip, main core by imaging sensor Picture signal is converted into network signal by piece, and network signal then is transmitted into the first modular converter, and the first modular converter is by network Signal is converted into analog signal, is then transmitted by the coaxial cable of elevator interior, then will be simulated and believed by demodulated equipment Number network signal is reduced into, transmission range can be increased, improve laser propagation effect, and isolation, lightning protection, antistatic, strong antijamming capability, It is simultaneously different to change elevator configuration, significantly reduce engineering cost.

Brief description of the drawings

Fig. 1 is a kind of structural representation of elevator monitoring system of the utility model；

Fig. 2 is the system structure diagram of the utility model embodiment one；

Fig. 3 is the circuit diagram of the bnc interface change-over circuit of the utility model embodiment one；

Fig. 4 is the schematic diagram of the EOC module interfaces of the utility model embodiment one；

Fig. 5 is the structural representation of the IP175B chips of the utility model embodiment one；

Fig. 6 is the structural representation of the IP116 chips of the utility model embodiment one；

Fig. 7 is the system structure diagram of the utility model embodiment two；

Fig. 8 is the electrical block diagram of the change-over circuit of the utility model embodiment two；

Fig. 9 is the structural representation of the video camera of the utility model embodiment three.

Label declaration：

1st, video camera；2nd, demodulated equipment；3rd, display device；4th, photodetector；

11st, master chip；12nd, imaging sensor；13rd, the first modular converter；14th, the second modular converter；

15th, light sensor；16th, infrared lamp drive module；17th, sound acquisition module.

Embodiment

For detailed description technology contents of the present utility model, the objects and the effects, below in conjunction with embodiment and match somebody with somebody Accompanying drawing is closed to be explained in detail.

The design of the utility model most critical is：Network signal is converted into analog signal and carried out by coaxial cable Transmission.

Referring to Fig. 1, a kind of elevator monitoring system, including video camera and demodulated equipment, the video camera include master chip, Imaging sensor and the first modular converter, first modular converter are used to network signal being converted to analog signal；It is described to take the photograph Camera is arranged in elevator, and the master chip is connected with imaging sensor and the first modular converter respectively, first modulus of conversion Block is connected by the coaxial cable of elevator with demodulated equipment.

It was found from foregoing description, the beneficial effects of the utility model are：Transmission range can be increased, improve laser propagation effect, And isolation, lightning protection, antistatic, strong antijamming capability, while different change elevator configurations, significantly reduce engineering cost.

Seen from the above description, network signal is converted to by analog signal by conversion chip, then changed by bnc interface Circuit is docked to coaxial cable, meanwhile, bnc interface change-over circuit, which has, isolates jamproof effect.

Seen from the above description, can be aobvious by row information above and below floor and floor position dynamic by setting photoelectric sensor Show on video pictures.

Seen from the above description, by setting light sensor and infrared lamp drive module, even in the low feelings of degree of illuminating Under condition, the scene of elevator interior can be also clearly visible that.

Seen from the above description, by setting sound acquisition module, the sound in elevator is acquired storage, to whole Elevator environment is monitored, and helps to be understood more intuitively the emergency case in elevator.

Seen from the above description, by setting display device, the video pictures that video camera is collected can intuitively be watched.

Seen from the above description, by setting interchanger, interchanger can connect multiple equipment, transfer data to master control Room, it is easy to manage concentratedly.

Embodiment one

Fig. 1-6 are refer to, embodiment one of the present utility model is：A kind of elevator monitoring system, can be applied to elevator monitoring, As shown in figure 1, including video camera 1 and demodulated equipment 2, the video camera 1 includes master chip 11, imaging sensor 12 and first turn Block 13 is changed the mold, first modular converter 13 is used to network signal being converted to analog signal；The video camera 1 is arranged on elevator Interior, the master chip 11 is connected with the modular converter 13 of imaging sensor 12 and first respectively, and first modular converter 13 passes through The coaxial cable of elevator is connected with demodulated equipment 2.

As shown in Fig. 2 also including display device 3, the display device 3 is connected by netting twine with the demodulated equipment 2.Can Selection of land, in addition to interchanger, the demodulated equipment connect the display device by the interchanger.

First modular converter includes the first change-over circuit, and first change-over circuit includes the conversion core being sequentially connected Piece and bnc interface change-over circuit, the conversion chip are connected with master chip, and the bnc interface change-over circuit connects with coaxial cable Connect.Further, the conversion chip connects master chip by network chip.

Preferably, the conversion chip includes the IP175B chips and IP116 chips being sequentially connected, the IP175B chips Master chip is connected, the IP116 chips connect bnc interface change-over circuit.Further, the IP175B chips pass through network core Piece connects master chip.

As shown in figure 3, the bnc interface change-over circuit includes associate coil T1, the first electric capacity C1, the second electric capacity C2, the Three electric capacity C3, the 4th electric capacity C4, first resistor R1, second resistance R2, the first TVS diode D1, the second TVS diode D2 and BNC socket, the associate coil include first coil and the second coil；One end of the first electric capacity C1 connects the conversion core Piece, the other end connect one end of first coil；One end of the second electric capacity C2 connects the conversion chip, other end connection the The other end of one coil；One end of second coil connects the first of BNC socket by the 3rd electric capacity C3 with first resistor R1 Pin, the other end connect the second pin, three-prong, the 4th pin and the 5th pin of BNC socket；Second coil it is another One end is also grounded；The other end that one end of second coil passes through the first TVS diode D1 second coils of connection；It is described First pin of second resistance R2 one end connection BNC socket, the other end connect the 4th electric capacity C4 one end；4th electric capacity The C4 other end connects the other end of second coil；The first of one end connection BNC socket of the second TVS diode D2 Pin, the other end connect the other end of second coil.

Preferably, the first electric capacity C1=0.1 μ F, the second electric capacity C2=0.1 μ F, the 3rd electric capacity C3=10 μ F/100V, 4th electric capacity C4=10nF/100V, first resistor R1=5.1 Ω, second resistance R2=75 Ω/1% (error that can have 1%).

TVS diode in circuit, i.e. Transient Suppression Diode, it can effectively protect the precision components in electronic circuit From the destruction of surge pulse, circuit and device are shielded.

Further, the master chip of the present embodiment thinks 3518A/3516C chips using sea；Imaging sensor directly passes through row Line is connected with master chip；Master chip is connected by network chip RTL8201F with the EOC module interfaces of the first modular converter, EOC Module interface as shown in figure 4, wherein TX+/- and RX+/- be two pairs of differential networks signals；Network signal is turned by IP175B chips IP116 chips are transmitted to after changing the signal of particular protocol into, the signal of reception is converted to analog signal by IP116 chips, specifically, Fig. 5 be IP175B chips structural representation, Fig. 6 be IP116 chips structural representation, 65,66 pins of IP175B chips (RXIP0/RXIM0) and 14,15 pin (TXOM3/TXOP3) pins are network signal input, pass through MDIO, MDC, M0_ The pins such as RXD0-3, M0_RXC, M0_RXDV, M0_TXC, M0_TXEN, M0_TXD0-3 by the signal of particular protocol export to The pins such as MDIO, MDC, M0_RXD0-3, M0_RXC, M0_RXDV, M0_TXC, M0_TXEN, M0_TXD0-3 of IP116 chips, 29 pins (ESU_P) and 30 pins (ESU_M) of IP116 chips are analog signal output, and the analog signal of output passes through Fig. 4 21 pins (PLC_S1) and 23 pins (PLC_S2) of middle EOC module interfaces are docked to Fig. 3 bnc interface change-over circuit, and BNC connects Mouth change-over circuit can play the jamproof effect of isolation；Then coaxial cable is docked to by the lead-out wire on BNC socket, simulated Signal is transmitted by coaxial cable, then analog signal is reduced into network signal by demodulated equipment, passes through network cable transmission To display device,

In the present embodiment, the picture signal collected is converted into network signal by imaging sensor by master chip, first turn Network signal is converted into analog signal by mold changing block, is then transmitted by the coaxial cable of elevator interior, then pass through demodulation Analog signal is reduced into network signal by equipment；By the signal transmission form of the present embodiment, can farthest transmit a signal to away from From video camera 1200m place, transmission range is added, improves laser propagation effect, and isolation, lightning protection, antistatic, anti-interference energy Power is strong, while different change elevator configurations, significantly reduces engineering cost.

Embodiment two

Fig. 7-8 are refer to, the present embodiment is the further expansion of embodiment one, and something in common is not repeated, and difference is, As shown in fig. 7, also including the photodetector 4 being arranged between elevator interlayer board, the inside of the video camera 1 is additionally provided with second Modular converter 14, the photodetector 4 are connected by second modular converter 14 with master chip 11.

Further, the photodetector is provided with the first photo-coupler and the second photo-coupler；Second conversion Module includes the second change-over circuit, and second change-over circuit includes two change-over circuits, and a change-over circuit connects main core respectively Piece and the first photo-coupler, another change-over circuit connect master chip and the second photo-coupler respectively.

As shown in figure 8, the change-over circuit includes mos pipes Q1,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the Six resistance R6 and the 5th electric capacity C5；The port ALARM_IN of the photodetector is managed by the 3rd resistor R3 connections mos Q1 grid, the drain electrode of the mos pipes Q1 pass through the GPIO mouths of the 4th resistance R5 connection master chips, the source electrode of the mos pipes Q1 Ground connection；The grid of the mos pipes Q1 is grounded by the 5th resistance R5；The drain electrode of the mos pipes Q1 passes through the 6th resistance R6 connections 3.3V voltage；One end of the 6th resistance R6 connection voltages is grounded by the 5th electric capacity C5.Further, the mos pipes Managed for N-type mos.

Wherein, the port of corresponding first photo-coupler in the change-over circuit connection photodetector of the first photo-coupler is connected ALARM_IN_1, the change-over circuit of the second photo-coupler of connection connect the port of corresponding second photo-coupler in photodetector ALARM_IN_2, two change-over circuits connect two different GPIO mouths of master chip respectively.

Preferably, 3rd resistor R3=10K Ω, the 5th resistance R5=33K Ω, the 6th resistance R6=10K Ω, the 5th electric capacity C5=100nF/25V.

Elevator mostly using level transducer and interlayer board come detect elevator floor and judge elevator whether flat bed.Whereby Interlayer board, U-shaped photoelectric sensor gather car movement data, photodetector are placed between interlayer board, above and below elevator During operation, the photodetector originally rested between flat bed plate leaves flat bed plate, i.e. two photo-couplers can successively leave flat Laminate, the state that is not blocked, output low and high level conversion, the external photodetector of video camera, by photoelectricity are changed into from occlusion state The data transfer that detector collects carries out interrupt processing into equipment, by software to the data received, above and below floor Row information and floor position are dynamically displayed on the video pictures of display device, can also be arranged as required to interlayer and skip floor, really It is correct to protect display.

Specifically, it is assumed that the first photo-coupler is arranged on the top of the second photo-coupler, the first photo-coupler connection main core First GPIO mouths of piece, the second photo-coupler connect the 2nd GPIO mouths of master chip；When ascending for elevator so that originally rest on Optocoupler between flat bed plate leaves flat bed plate and is not blocked, and the first photo-coupler first leaves flat bed plate, and interface level is drawn by high step-down The first GPIO mouths that originally dragged down are played to be driven high, when leaving flat bed plate after the second photo-coupler, same interface level by height to It is low, cause the 2nd GPIO mouths originally dragged down to be driven high, GPIO mouths draw high information and are transferred directly to master chip, are docked by software The rising edge priority information received carries out interrupt processing, judges that elevator is in uplink state.Similarly downstream state is also such. That is if level signal corresponding to the first GPIO mouths is first in rising edge, it is in after level signal corresponding to the 2nd GPIO mouths Rising edge, then judge that elevator is uplink state；If level signal corresponding to the 2nd GPIO mouths is first in rising edge, the first GPIO mouths Rising edge is in after corresponding level signal, then judges that elevator is downstream state.As long as wherein set it is initial where floor and Total floor just can accurately in monitored picture Dynamic Announce elevator up-down state and place floor position, due to photodetection Device is consistent with Elevator landing optocoupler placement location, can also sandwich establishment according to demand so it is real-time synchronization that floor, which is shown, And skip floor, remarks etc. are carried out to floor details.

In the present embodiment, by setting photoelectric sensor, row information above and below floor and floor position can be dynamically displayed to On video pictures.

Embodiment three

Fig. 9 is refer to, the present embodiment is the further expansion of above-described embodiment, and something in common is not repeated, and difference is, The video camera 1 also includes light sensor 15 and infrared lamp drive module 16, light sensor 15 and the infrared lamp driving Module 16 is connected with the master chip 11 respectively.

The video camera 1 also includes sound acquisition module 17, and the sound acquisition module 17 is connected with the master chip 11. Preferably, sound acquisition module 17 is miaow head.

By setting light sensor and infrared lamp drive module, when environment light is relatively darker or illuminating lamp damage occurs Under conditions of, master chip can be handled the data that light sensor collects, and infrared lamp can be opened, and can pass through environment Intensity of illumination controls the electric current of infrared lamp, so as to control the brightness of infrared lamp so that in the case that degree of illuminating is low, Also the scene of elevator interior can be clearly visible that.

By setting sound acquisition module, the sound in elevator is acquired storage, whole elevator environment is supervised Listen, help to be understood more intuitively the emergency case in elevator.

In summary, a kind of elevator monitoring system provided by the utility model, master chip will collect imaging sensor Picture signal be converted into network signal, network signal is converted into analog signal by the first modular converter, then by elevator The coaxial cable in portion is transmitted, then analog signal is reduced into network signal by demodulated equipment；Transmission range can be increased, carried High-transmission effect, and isolation, lightning protection, antistatic, strong antijamming capability, while different change elevator configurations, are greatly reduced Engineering cost；By setting photoelectric sensor, row information above and below floor and floor position can be dynamically displayed to video pictures On；By setting light sensor and infrared lamp drive module, in the case that degree of illuminating is low, electricity can be also clearly visible that Scene inside ladder；By setting sound acquisition module, the sound in elevator is acquired storage, whole elevator environment is entered Row is monitored, and helps to be understood more intuitively the emergency case in elevator.

Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every The equivalents made using the utility model specification and accompanying drawing content, or directly or indirectly it is used in the technology neck of correlation Domain, similarly it is included in scope of patent protection of the present utility model.

Claims

A kind of 1. elevator monitoring system, it is characterised in that including video camera and demodulated equipment, the video camera include master chip, Imaging sensor and the first modular converter, first modular converter are used to network signal being converted to analog signal；It is described to take the photograph Camera is arranged in elevator, and the master chip is connected with imaging sensor and the first modular converter respectively, first modulus of conversion Block is connected by the coaxial cable of elevator with demodulated equipment.
2. elevator monitoring system according to claim 1, it is characterised in that first modular converter includes the first conversion Circuit, first change-over circuit include the conversion chip and bnc interface change-over circuit being sequentially connected, the conversion chip and master Chip is connected, and the bnc interface change-over circuit is connected with coaxial cable.
3. elevator monitoring system according to claim 2, it is characterised in that the conversion chip includes what is be sequentially connected IP175B chips and IP116 chips, the IP175B chips connect master chip, the IP116 chips connection bnc interface conversion electricity Road.
4. elevator monitoring system according to claim 2, it is characterised in that the bnc interface change-over circuit includes conjugation Coil, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, first resistor, second resistance, the first TVS diode, second TVS diode and BNC socket, the associate coil include first coil and the second coil；

One end of first electric capacity connects the conversion chip, and the other end connects one end of first coil；Second electric capacity One end connect the conversion chip, the other end connects the other end of first coil；One end of second coil passes through the 3rd Electric capacity connects the first pin of BNC socket with first resistor, the second pin of other end connection BNC socket, three-prong, the 4th Pin and the 5th pin；The other end of second coil is also grounded；One end of second coil passes through the first TVS bis- Pole pipe connects the other end of the second coil；First pin of one end connection BNC socket of the second resistance, other end connection the One end of four electric capacity；The other end of 4th electric capacity connects the other end of second coil；Second TVS diode One end connects the first pin of BNC socket, and the other end connects the other end of second coil.
5. elevator monitoring system according to claim 1, it is characterised in that also include being arranged between elevator interlayer board Photodetector, the inside of the video camera are additionally provided with the second modular converter, and the photodetector is changed by described second Module is connected with master chip.
6. elevator monitoring system according to claim 5, it is characterised in that the photodetector is provided with the first optocoupler Clutch and the second photo-coupler；Second modular converter includes the second change-over circuit, and second change-over circuit includes two Change-over circuit, a change-over circuit connect master chip and the first photo-coupler respectively, another change-over circuit connect respectively master chip with Second photo-coupler；

The change-over circuit includes mos pipes, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance and the 5th electric capacity；It is described Photodetector connects the grid of the mos pipes by 3rd resistor, and the drain electrode of the mos pipes connects main core by the 4th resistance Piece, the source ground of the mos pipes；The grid of the mos pipes passes through the 5th resistance eutral grounding；The drain electrode of the mos pipes passes through Six resistance connect 3.3V voltage；One end of the 6th resistance connection voltage passes through the 5th capacity earth.
7. elevator monitoring system according to claim 1, it is characterised in that the video camera also include light sensor and Infrared lamp drive module, light sensor and the infrared lamp drive module are connected with the master chip respectively.
8. elevator monitoring system according to claim 1, it is characterised in that the video camera also includes sound collection mould Block, the sound acquisition module are connected with the master chip.
9. elevator monitoring system according to claim 1, it is characterised in that also including display device, the display device It is connected by netting twine with the demodulated equipment.
10. elevator monitoring system according to claim 9, it is characterised in that also lead to including interchanger, the demodulated equipment Cross the interchanger and connect the display device.