CN107835186A - A kind of lift car and its Video transmission system and method - Google Patents
A kind of lift car and its Video transmission system and method Download PDFInfo
- Publication number
- CN107835186A CN107835186A CN201711192384.1A CN201711192384A CN107835186A CN 107835186 A CN107835186 A CN 107835186A CN 201711192384 A CN201711192384 A CN 201711192384A CN 107835186 A CN107835186 A CN 107835186A
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
- B66B11/0233—Lighting systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
- H04N7/108—Adaptations for transmission by electrical cable the cable being constituted by a pair of wires
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Civil Engineering (AREA)
- Computer Security & Cryptography (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The invention discloses a kind of lift car and its Video transmission system and method, the car includes：Light switch and controller, illuminating lamp is installed in the inner top wall of the lift car, the inside left side of the lift car, below and the right side is mounted on human body infrared inductor, the light switch and controller are separately mounted to the left side and the right side of lift car, the illuminating lamp is electrically connected with light switch, and light switch and the human body infrared inductor is electrically connected with the controller.Have the advantages that energy-conserving and environment-protective, cost are low, safe, reliable and strong antijamming capability.
Description
Technical field
The present invention relates to elevator technology field, more particularly to a kind of lift car and its Video transmission system and method.
Background technology
With deepening continuously for economic fast-developing and Development of China's Urbanization, the elevator industry in China is just experiencing a height
Fast period of expansion.China's elevator yield is from 1.03 ten thousand of nineteen ninety rise to 2010 36.5 ten thousand, annual compound growth rate
19.5%, domestic elevator demands amount was from only 3.72 ten thousand rise to 2010 32.97 ten thousand of 2000, to the end of the year 2010, I
State's elevator recoverable amount refers to more than 1,600,000《The Chinese elevator industry market demand forecast is reported with Analysis of Investment Opportunities》.
Main tool of the elevator as high building carrying/goods, will be more and more extensive in the use in future, and it is most common
Public place, so it is necessary that CCTV camera is installed in elevator.Elevator monitoring was in retinue by video line shuffling in the past
In cable, Surveillance center is being connected to by elevator(lift) machine room output, system architecture is simple.But elevator hoistways are one complex
Environment, the video monitoring images of many engineerings by different degrees of interference in elevator hoistways environment, this is always most common,
One of the problem of being most difficult to tackle and be of greatest concern.
In addition, also there are following two problems in elevator monitoring network signal transmission at present：First, the hoistway ring of elevator operation
Border interference is very serious, and how to reduce the loss of network signal is all a problem all the time；Second, the hoistway of elevator operation
Execution conditions are poor, if being network monitoring by original simulation monitoring transformation and upgrade, tradition is off-gauge to accompany netting twine colligation
The scheme cost of cable is high, also hinders the upgrading of elevator monitoring the shortcomings that poor reliability always；Third, to prison out of lift car
Computer room long distance of signal transmission is controlled, can not stablize and clearly transfer signals to computer room, also annoying construction work.
The content of the invention
It is an object of the invention to provide a kind of lift car and its Video transmission system and method, have energy-conserving and environment-protective,
The advantages that cost is low, safe, reliable and strong antijamming capability.
The technical solution adopted by the present invention is as follows：
A kind of lift car, the car include：Light switch and controller, it is provided with the inner top wall of the lift car
Illuminating lamp, the inside left side of the lift car, below and the right side is mounted on human body infrared inductor, the light switch
And controller is separately mounted to the left side and the right side of lift car, the illuminating lamp electrically connects with light switch, the photograph
Bright switch and human body infrared inductor are electrically connected with the controller.
Further, the illuminating lamp is arranged to several, and illuminating lamp is set in distance.
Further, the human body infrared inductor setting height be apart from the bottom of lift car 0.6-0.9m it
Between.
A kind of lift car Video transmission system, the system include：Video acquisition device, image processing apparatus, first
Chromacoder, unmasked two-core cable, secondary signal conversion equipment, wireless signal transmission, signal transferring device, nothing
Line signal receiving device and image display device；The video acquisition device signal is connected to image processing apparatus；Described image
Signal is connected to the first chromacoder and wireless signal transmission to processing unit respectively；First chromacoder
Signal is connected to unmasked two-core cable；Secondary signal conversion equipment is connected to after the unmasked two-core cable signal；It is described
Secondary signal conversion device signal is connected to image display device；The wireless signal transmission signal is connected to signal transfer
Device；The signal transferring device signal is connected to wireless signal receiver；The wireless signal receiver signal connection
In image display device.
Further, the video acquisition device includes：For obtaining the camera of original video image information；It is described
Camera signals are connected to the mode switching unit for converting video image information transmission mode；The mode switching unit letter
Number it is connected to the quality testing unit for being detected to transmission quality.
Further, described image processing unit includes：Image encryption unit, image compression unit and Image Coding list
Member；Described image ciphering unit, for the image received to be encrypted, the image information after encryption is sent to image pressure
Contracting unit；Described image compression unit, compression of images is carried out for carrying out image information to the image after encryption, after compression
Image is sent to the first chromacoder or wireless signal transmission.
Further, described image display device includes：Image decoding unit, image decompressor unit, image decryption list
Member and image-display units；Described image decoding unit, for being decoded to the image information received, by decoded figure
As sending to image decompressor unit；Described image decompression unit, for carrying out image pressurization to the image information received
Contracting, the image after decompression is sent to image decryption unit；Described image decryption unit, for being carried out to the image received
Decryption, the image after decryption is sent to image-display units and shown；Described image display unit, for receiving
Image is shown.
Further, the system also includes：Means for anti-jamming；The means for anti-jamming is arranged at the first signal of elevator
Conversion equipment, unmasked two-core cable and secondary signal conversion equipment, for reducing the electromagnetic interference in signals transmission；Institute
Stating means for anti-jamming includes：Interference prediction unit, power filtering unit, high-frequency absorption capacitor and hardware enabling dog unit；Institute
Signal is connected to the first chromacoder, unmasked two-core cable and secondary signal converting means to the power filtering unit respectively
The power supply put, for filtering out the interference of power supply；The high-frequency absorption capacitor is used to absorb the electromagnetism on unmasked two-core cable
Interference；The hardware watchdog, respectively signal be connected to the first chromacoder, unmasked two-core cable and secondary signal turn
Changing device, for preventing because program operation problem caused by outer external interference so that each device energy normal operation；It is described dry
Predicting unit is disturbed, for being predicted to the interference in system, the quantized value of system interference is drawn, quantized value is sent to image
Display device.
A kind of method of lift car video signal transmission system, it is characterised in that the described method comprises the following steps：
Step 1：System starts, system initialization；
Step 2：It whether there is problem in video acquisition device detection signal transmitting procedure, if wire signal transmission goes wrong,
Transmission of wireless signals pattern is then transformed into, performs step 3；If wire signal transmission does not go wrong, close wireless signal and pass
It is defeated, perform step 5；
Step 3：Image processing apparatus carries out image encryption, compression and coding work, the letter that will be handled well to the image received
Breath is sent to the first chromacoder；
Step 4：The vision signal is converted to differential signal by the first chromacoder；By unmasked two-core cable send to
Secondary signal conversion equipment；The differential signal is converted to the recognizable vision signal of display device by secondary signal conversion equipment,
Perform step 7；
Step 5：Image processing apparatus carries out image encryption, compression and coding work, the letter that will be handled well to the image received
Breath is sent to wireless signal transmission；
Step 6：The vision signal is sent to signal receiving device, signal and connect by wireless signal transmission through signal transferring device
Receiving apparatus transmits the signal to image display device, performs step 7；
Step 7：Image display device carries out image decoding to the signal received, is decompressed and decrypted by, and plays the video image.
Beneficial effects of the present invention are as follows：
Using above technical scheme, present invention produces following beneficial effect：
1st, cost is low：The unmasked two core cable of the present invention can use the cable in elevator trailing cable, without extra wiring,
Scheme solves the shortcomings that expensive, wiring is difficult, easily broken.
2nd, strong antijamming capability：The present invention adds anti-interference function in wire transmission part, and not only power supply disturbance is entered
Row filtering, the more interference to cored wire absorb.The hardware of each device is carried out in addition, being also added into hardware watchdog function
Monitoring, it is ensured that the normal operation of hardware.
3rd, it is reliable：Present invention employs two sets of Transmission systems to be transmitted to video, when wire transmission is broken down, from
Dynamic be switched to is wirelessly transferred, ensure that transmission of video each period can normal operation, ensure that the reliable of transmission of video
Property.
4th, it is safe：Original video image is encrypted using unique cipher mode by the present invention, not only regarding
Insert key in frequency image, more the start frame partial insertion IP address of purpose equipment in video image, ensure video i.e.
Just it is intercepted and is also difficult to crack, at utmost ensure that the security in video transmitting procedure.
Brief description of the drawings
Fig. 1 is the structural representation of the lift car of the present invention.
Fig. 2 is the structural representation of the Video transmission system of the present invention.
Wherein：1 lift car, 2 illuminating lamps, 3 human body infrared inductors, 4 light switches, 5 controllers, 6 light failure reports
Alert device.
Specific embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
This specification（Including any accessory claim, summary）Disclosed in any feature, unless specifically stated otherwise,
Replaced by other equivalent or with similar purpose alternative features.I.e., unless specifically stated otherwise, each feature is a series of
An example in equivalent or similar characteristics.
Embodiment 1：
As shown in figure 1, a kind of lift car, the car includes：Light switch and controller, the inside top of the lift car
Illuminating lamp is installed, the inside left side of the lift car, below and the right side is mounted on human body infrared inductor, institute on wall
State light switch and controller is separately mounted to the left side and the right side of lift car, the illuminating lamp is electrically connected with light switch
Connect, light switch and the human body infrared inductor is electrically connected with the controller.
Further, the illuminating lamp is arranged to several, and illuminating lamp is set in distance.
Further, the human body infrared inductor setting height be apart from the bottom of lift car 0.6-0.9m it
Between.
Embodiment 2：
As shown in Fig. 2 a kind of lift car Video transmission system, the system include：Video acquisition device, image procossing dress
Put, the first chromacoder, unmasked two-core cable, secondary signal conversion equipment, wireless signal transmission, signal transfer
Device, wireless signal receiver and image display device；The video acquisition device signal is connected to image processing apparatus；Institute
Stating image processing apparatus, signal is connected to the first chromacoder and wireless signal transmission respectively；First signal turns
Changing device signal is connected to unmasked two-core cable；Secondary signal converting means is connected to after the unmasked two-core cable signal
Put；The secondary signal conversion device signal is connected to image display device；The wireless signal transmission signal is connected to
Signal transferring device；The signal transferring device signal is connected to wireless signal receiver；The wireless signal receiver
Signal is connected to image display device.
Further, the video acquisition device includes：For obtaining the camera of original video image information；It is described
Camera signals are connected to the mode switching unit for converting video image information transmission mode；The mode switching unit letter
Number it is connected to the quality testing unit for being detected to transmission quality.
Further, described image processing unit includes：Image encryption unit, image compression unit and Image Coding list
Member；Described image ciphering unit, for the image received to be encrypted, the image information after encryption is sent to image pressure
Contracting unit；Described image compression unit, compression of images is carried out for carrying out image information to the image after encryption, after compression
Image is sent to the first chromacoder or wireless signal transmission.
Further, described image display device includes：Image decoding unit, image decompressor unit, image decryption list
Member and image-display units；Described image decoding unit, for being decoded to the image information received, by decoded figure
As sending to image decompressor unit；Described image decompression unit, for carrying out image pressurization to the image information received
Contracting, the image after decompression is sent to image decryption unit；Described image decryption unit, for being carried out to the image received
Decryption, the image after decryption is sent to image-display units and shown；Described image display unit, for receiving
Image is shown.
Further, the system also includes：Means for anti-jamming；The means for anti-jamming is arranged at the first signal of elevator
Conversion equipment, unmasked two-core cable and secondary signal conversion equipment, for reducing the electromagnetic interference in signals transmission；Institute
Stating means for anti-jamming includes：Interference prediction unit, power filtering unit, high-frequency absorption capacitor and hardware enabling dog unit；Institute
Signal is connected to the first chromacoder, unmasked two-core cable and secondary signal converting means to the power filtering unit respectively
The power supply put, for filtering out the interference of power supply；The high-frequency absorption capacitor is used to absorb the electromagnetism on unmasked two-core cable
Interference；The hardware watchdog, respectively signal be connected to the first chromacoder, unmasked two-core cable and secondary signal turn
Changing device, for preventing because program operation problem caused by outer external interference so that each device energy normal operation；It is described dry
Predicting unit is disturbed, for being predicted to the interference in system, the quantized value of system interference is drawn, quantized value is sent to image
Display device.
Embodiment 3：
A kind of method of lift car video signal transmission system, it is characterised in that the described method comprises the following steps：
Step 1：System starts, system initialization；
Step 2：It whether there is problem in video acquisition device detection signal transmitting procedure, if wire signal transmission goes wrong,
Transmission of wireless signals pattern is then transformed into, performs step 3；If wire signal transmission does not go wrong, close wireless signal and pass
It is defeated, perform step 5；
Step 3：Image processing apparatus carries out image encryption, compression and coding work, the letter that will be handled well to the image received
Breath is sent to the first chromacoder；
Step 4：The vision signal is converted to differential signal by the first chromacoder；By unmasked two-core cable send to
Secondary signal conversion equipment；The differential signal is converted to the recognizable vision signal of display device by secondary signal conversion equipment,
Perform step 7；
Step 5：Image processing apparatus carries out image encryption, compression and coding work, the letter that will be handled well to the image received
Breath is sent to wireless signal transmission；
Step 6：The vision signal is sent to signal receiving device, signal and connect by wireless signal transmission through signal transferring device
Receiving apparatus transmits the signal to image display device, performs step 7；
Step 7：Image display device carries out image decoding to the signal received, is decompressed and decrypted by, and plays the video image.
It is described above, be only presently preferred embodiments of the present invention, any formal limitation not done to the present invention, it is every according to
Any simply modification, the equivalent variations made according to the technical spirit of the present invention to above example, each fall within the protection of the present invention
Within the scope of.
Claims (9)
1. a kind of lift car, it is characterised in that the car includes：Light switch and controller, the lift car it is interior
Illuminating lamp is installed, the inside left side of the lift car, below and the right side is mounted on human body infrared sensing on portion's roof
Device, the light switch and controller are separately mounted to the left side and the right side of lift car, and the illuminating lamp is opened with illumination
Powered-down connection, light switch and the human body infrared inductor are electrically connected with the controller.
2. lift car according to claim 1, it is characterised in that：The illuminating lamp is arranged to several, and illuminating lamp
It is set in distance.
3. lift car according to claim 1, it is characterised in that：The setting of the human body infrared inductor highly be away from
From between the bottom 0.6-0.9m of lift car.
4. a kind of lift car Video transmission system, it is characterised in that the system includes：Video acquisition device, image procossing
In device, the first chromacoder, unmasked two-core cable, secondary signal conversion equipment, wireless signal transmission, signal
Rotary device, wireless signal receiver and image display device；The video acquisition device signal is connected to image processing apparatus；
Signal is connected to the first chromacoder and wireless signal transmission to described image processing unit respectively；First signal
Conversion device signal is connected to unmasked two-core cable；Secondary signal converting means is connected to after the unmasked two-core cable signal
Put；The secondary signal conversion device signal is connected to image display device；The wireless signal transmission signal is connected to
Signal transferring device；The signal transferring device signal is connected to wireless signal receiver；The wireless signal receiver
Signal is connected to image display device.
5. lift car Video transmission system as claimed in claim 4, it is characterised in that the video acquisition device includes：
For obtaining the camera of original video image information；The camera signals are connected to be passed for converting video image information
The mode switching unit of defeated pattern；The mode switching unit signal is connected to the quality testing list for being detected to transmission quality
Member.
6. lift car Video transmission system as claimed in claim 5, it is characterised in that described image processing unit includes：
Image encryption unit, image compression unit and image coding unit；Described image ciphering unit, for entering to the image received
Row encryption, the image information after encryption is sent to image compression unit；Described image compression unit, for the figure after encryption
Compression of images is carried out as carrying out image information, the image after compression is sent to the first chromacoder or transmission of wireless signals
Device.
7. lift car Video transmission system as claimed in claim 6, it is characterised in that described image display device includes：
Image decoding unit, image decompressor unit, image decryption unit and image-display units；Described image decoding unit, is used for
The image information received is decoded, decoded image is sent to image decompressor unit；Described image decompresses
Unit, for carrying out image pressurization contracting to the image information received, the image after decompression is sent to image decryption unit；
Described image decryption unit, for the image received to be decrypted, the image after decryption is sent to image-display units
Shown；Described image display unit, for being shown to the image received.
8. lift car Video transmission system as claimed in claim 7, it is characterised in that the system also includes：It is anti-interference
Device；The means for anti-jamming is arranged at the first chromacoder, unmasked two-core cable and the secondary signal conversion of elevator
Device, for reducing the electromagnetic interference in signals transmission；The means for anti-jamming includes：Interference prediction unit, power supply filter
Ripple unit, high-frequency absorption capacitor and hardware enabling dog unit；Signal is connected to the first letter to institute's power filtering unit respectively
The power supply of number conversion equipment, unmasked two-core cable and secondary signal conversion equipment, for filtering out the interference of power supply；The high frequency
Absorption capacitor is used to absorb the electromagnetic interference on unmasked two-core cable；The hardware watchdog, respectively signal be connected to
One chromacoder, unmasked two-core cable and secondary signal conversion equipment, for preventing because caused by outer external interference
Program operation problem so that each device energy normal operation；The interference prediction unit, it is pre- for being carried out to the interference in system
Survey, draw the quantized value of system interference, quantized value is sent to image display device.
9. a kind of method of the lift car video signal transmission system based on described in one of claim 4 to 8, its feature exist
In the described method comprises the following steps：
Step 1：System starts, system initialization；
Step 2：It whether there is problem in video acquisition device detection signal transmitting procedure, if wire signal transmission goes wrong,
Transmission of wireless signals pattern is then transformed into, performs step 3；If wire signal transmission does not go wrong, close wireless signal and pass
It is defeated, perform step 5；
Step 3：Image processing apparatus carries out image encryption, compression and coding work, the letter that will be handled well to the image received
Breath is sent to the first chromacoder；
Step 4：The vision signal is converted to differential signal by the first chromacoder；By unmasked two-core cable send to
Secondary signal conversion equipment；The differential signal is converted to the recognizable vision signal of display device by secondary signal conversion equipment,
Perform step 7；
Step 5：Image processing apparatus carries out image encryption, compression and coding work, the letter that will be handled well to the image received
Breath is sent to wireless signal transmission；
Step 6：The vision signal is sent to signal receiving device, signal and connect by wireless signal transmission through signal transferring device
Receiving apparatus transmits the signal to image display device, performs step 7；
Step 7：Image display device carries out image decoding to the signal received, is decompressed and decrypted by, and plays the video image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711192384.1A CN107835186A (en) | 2017-11-24 | 2017-11-24 | A kind of lift car and its Video transmission system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711192384.1A CN107835186A (en) | 2017-11-24 | 2017-11-24 | A kind of lift car and its Video transmission system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107835186A true CN107835186A (en) | 2018-03-23 |
Family
ID=61652509
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|---|---|---|---|
| CN201711192384.1A Pending CN107835186A (en) | 2017-11-24 | 2017-11-24 | A kind of lift car and its Video transmission system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118075415A (en) * | 2024-04-22 | 2024-05-24 | 厦门夏硕科技有限公司 | Audio and video data transmission system in elevator based on power transmission line |
-
2017
- 2017-11-24 CN CN201711192384.1A patent/CN107835186A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118075415A (en) * | 2024-04-22 | 2024-05-24 | 厦门夏硕科技有限公司 | Audio and video data transmission system in elevator based on power transmission line |
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