CN2260427Y - Multiple-channel controller for industrial TV set - Google Patents
Multiple-channel controller for industrial TV set Download PDFInfo
- Publication number
- CN2260427Y CN2260427Y CN 96235770 CN96235770U CN2260427Y CN 2260427 Y CN2260427 Y CN 2260427Y CN 96235770 CN96235770 CN 96235770 CN 96235770 U CN96235770 U CN 96235770U CN 2260427 Y CN2260427 Y CN 2260427Y
- Authority
- CN
- China
- Prior art keywords
- controller
- utility
- model
- receiving end
- video camera
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Closed-Circuit Television Systems (AREA)
Abstract
The utility model relates to a controller for an industrial TV. The controller mainly solves the problems that the prior art has multiple transmission wires, inconvenient external wire erection, large maintenance amount and high cost. The utility model has the technical proposal that the controller can be arranged as a bidirectional multi-path controller. A receiving terminal of each path of the controller can be directly connected with a video camera and a tripod head; a sending terminal is connected with a monitor by a multi-path switcher; a single cable wire is adopted to carry out transmission between the receiving terminal and the sending terminal; the utility model can make use of the single cable wire to transmit the image and the control signal and solve the separation of the video signal and the control signal. The utility model can leave out four control wires between the tripod head and the camera; the utility model has the advantages of convenient outside wire erecting operation, low maintenance rate, etc.; compared with the existing system, the cost of the utility model can be reduced by two third. The utility model can be widely used in enterprise management network systems.
Description
The utility model relates to parts in the closed-circuit TV system, particularly a kind of multiplexer (MUX.
Present existing closed-circuit TV system mostly adopts single shielded type cable to connect camera to the picture signal between the machine room, connects the control signal of The Cloud Terrace to machine room with four cables, as shown in Figure 3.This scheme makes two kinds of signals walk passage separately, thereby has following shortcoming owing to connect vision signal and control signal with its two kinds different cables:
(1) outside line is set up and will be subjected to the physical features conditionality, and later stage outside line maintenance load is big, especially at extremely frigid zones, gets rid of very inconvenience of line fault and Installation and Debugging;
(2) cost height, usually video camera, the The Cloud Terrace room of disembarking is all distant, even several kilometers, cable is with every meter 2.1 yuan of calculations, and its fee of material amounts to 9840 yuan.
The purpose of this utility model is to avoid the deficiency of above-mentioned prior art, provides a kind of and sets up conveniently the two-way multiplexer (MUX of the industrial television that cost is low.
The technical scheme that realizes the object of the invention is to change unidirectional lotus root to be combined into multiplexing, and controller is made as by making a start and receiving end two-way multiplexer (MUX dimerous.The receiving end on each road directly is connected with video camera, The Cloud Terrace terminal, make a start and be connected with switch, receiving end with make a start between adopt the unit cable line to be connected, the video input signals that returns from video camera enters the receiving end controller and links to each other with external transmission lines, by the output of making a start.This unit cable line is finished picture signal respectively and is transmitted, and control signal transmission and vision signal are separated with direct current signal.
The unit cable transmission line the receiving end of two-way multiplexer (MUX with make a start between adopt and unsettledly be connected timesharing and switch, being cable is connected on the ignore of two groups of two point push-button switches making a start, for vision signal provides passage, input and the output of video circuit, two groups of switches of being connected video camera, The Cloud Terrace switching circuit in receiving end are connected respectively according to different requirements.
The controller of making a start is finished following six kinds of functions respectively:
1. provide+the 18V dc control signal is to receiving end, starts the control signal that ccd video camera power supply and The Cloud Terrace rotate as receiving end.
2. the control signal that provides The Cloud Terrace to stop operating;
3. the ccd video camera off signal is provided;
4. the vision signal of coming for the ccd video camera passback is separated with dc control signal provides passage;
5. provide 75 Ω AC impedance for video signal transmission.
6. going into/export two ends for bus increases emitter follower, improves load capacity.
The receiving end controller is finished following four kinds of functions respectively:
1. taking out makes a start send+18 dc control signals, start ccd video camera power supply+12V work, connect The Cloud Terrace 220V power supply, guarantee that video camera and The Cloud Terrace kept before future powering at off signal, then the automatic disconnection dc control signal.
2. take out send here by making a start-the 12V control signal, the magnetic latching relay that the control The Cloud Terrace is rotated oppositely discharges, to close The Cloud Terrace.
3. take out the ccd video camera off signal, control ccd video camera power-off.
4. to the transmission vision signal of making a start
The utility model is owing to adopt the unit cable line to connect making a start of two-way multiplexer (MUX and receiving end, transmitted image, control signal and finish separating of vision signal and direct current signal on single line, thereby four control lines have been saved, avoided outside line to set up inconvenience and the big deficiency of maintenance capacity, the sill cost has reduced by 2/3rds than existing procucts, (existing procucts material valency is 9800 yuan, and the utility model material valency is 3400 yuan).
Describe structural principle of the present utility model in detail below in conjunction with accompanying drawing:
Fig. 1 is a block diagram of the present utility model
Fig. 2 is circuit theory diagrams of the present utility model
Fig. 3 is the prior art block diagram
With reference to Fig. 1, the utility model is two-way No. 8 controllers, is divided into receiving end and the two parts of making a start.Making a start of each road is connected with the respective end of 8 road switchs, and the receiving end on each road is connected with corresponding video camera, The Cloud Terrace, make a start with receiving end between adopt the unit cable transmission line to be connected.Give the receiving end controller from the video input signals of video camera passback and link to each other, enter switch, finish signal transmission overall process by the output of making a start with external transmission lines.
Among Fig. 2, triode T
4With peripheral element R
12, R
13, R
14, R
15, capacitor C
5, C
6, C
7, inductance L
1, L
2Constitute make a start controller, wherein R
5, C
7Constitute resistance control match circuit.Triode T
1, T
2, trigger Q, relay T
1, diode D
1, D
2, R
3, R
4, R
5, R
6, C
1, L
3Form receiving end ccd video camera switching circuit.Inductance L
4, relay J
BConstitute receiving end The Cloud Terrace on/off circuit.Triode T
3And peripheral element R
8, R
9, R
10, C
2, C
3, C
4Constitute the receiving end video signal input circuit.
The receiving end circuit is connected by unit cable bus A between the circuit with making a start.Bus A is connected on two groups of two point button switch K making a start
1, K
2Ignore on, provide passage to vision signal, two switches can require to connect respectively according to difference.In receiving end, bus A and inductance coil L
3, L
4And video efferent duct T
3Join.Inductance L
1, L
2, L
3, L
4Effect, the one, direct current is presented low-resistance, vision signal is presented high resistant, the 2nd, from vision signal, isolate direct current signal.The concrete work of entire circuit is divided into three processes of separating of start, shutdown, vision signal and direct current signal.Promptly when starting shooting first, by C
1, R
4Produce a positive transition pulse, making trigger Q is low level, T
2End J
ABe in normally off, when the K switch of making a start
1When pressing ,+18V power supply is through L
1, bus A, coil L
3, L
4, diode D
1Divide and be clipped to T
1And J
BAt this moment T
1Pipe produces a potential change by by entering saturation conduction, and trigger Q becomes high potential by electronegative potential, T
2Pipe by by become saturated, J
AAction ,+12V power supply is added on the video camera, video camera work.Equally under+18V effect, J
BAction, 220V voltage is added on the The Cloud Terrace, and The Cloud Terrace begins to rotate.With the fixing a certain position of video camera, press the K switch of making a start simultaneously
2The time ,-12V voltage is through L
2, bus A and L
4Be added to J
BOn, J
BBe subjected to disconnect after the reverse voltage effect, The Cloud Terrace stops operating.At this moment, because D
1The forward interconnect function of pipe, negative voltage adds less than T
1On the pipe,, ccd video camera is not subjected to the influence of The Cloud Terrace off signal so working on.During if will all shut down, then need again by a K switch
1, T then
1The C utmost point just produce a saltus step, the state step-down of trigger Q, J
ADisconnect, video camera cuts out, when pressing a K again
2Shi Yuntai also closes.
Under the start normal operating conditions, the separating of its vision signal and direct current signal mainly by the inductance coil L that is connected bus A two ends
1, L
2, L
3, L
4Finish, promptly vision signal is through capacitor C
3, R
10The impedance matching circuit of forming enters T
3The base stage of pipe is from T
3Emitter send with external bus A and link to each other because inductance L
1, L
2, L
3The high resistant effect, vision signal is through the T of the circuit of making a start
4Base stage is from T
4Emitter output enter the switch input, finish whole processes of Channel Transmission.
Among Fig. 2, trigger Q adopts the CD4013 model.
Native system can be used for industrial shoot and monitor field.
Claims (2)
1. industrial television multiplexer (MUX, comprise transmission cable, multi-channel switcher, monitor and controlled terminal, it is characterized in that controller is by receiving end and the two-way multiplexer (MUX of making a start and constituting, the receiving end on this each road of controller directly is connected with video camera, The Cloud Terrace terminal, make a start and link to each other with switch, receiving end with make a start between adopt the unit cable transmission line to be connected, the video input signals that returns from video camera enters the receiving end controller and links to each other with external bus A, by the output of making a start.
2. controller according to claim 1 is characterized in that the unit cable transmission line, make a start with receiving end between adopt and unsettledly to be connected timesharing and to switch, promptly cable is connected two groups of two point button switch K making a start
1, K
2Ignore on, for vision signal provides path, be connected the input of video camera, The Cloud Terrace switching circuit and the output of vision signal in receiving end, connect respectively according to different the requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96235770 CN2260427Y (en) | 1996-03-29 | 1996-03-29 | Multiple-channel controller for industrial TV set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96235770 CN2260427Y (en) | 1996-03-29 | 1996-03-29 | Multiple-channel controller for industrial TV set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2260427Y true CN2260427Y (en) | 1997-08-20 |
Family
ID=33911737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96235770 Expired - Fee Related CN2260427Y (en) | 1996-03-29 | 1996-03-29 | Multiple-channel controller for industrial TV set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2260427Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901371A (en) * | 2012-10-11 | 2013-01-30 | 沈阳仪表科学研究院 | Mist spraying cooling device for indirect air cooling system of power plant condenser |
-
1996
- 1996-03-29 CN CN 96235770 patent/CN2260427Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901371A (en) * | 2012-10-11 | 2013-01-30 | 沈阳仪表科学研究院 | Mist spraying cooling device for indirect air cooling system of power plant condenser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |