GB2201563A - A surveillance system - Google Patents
A surveillance system Download PDFInfo
- Publication number
- GB2201563A GB2201563A GB08802577A GB8802577A GB2201563A GB 2201563 A GB2201563 A GB 2201563A GB 08802577 A GB08802577 A GB 08802577A GB 8802577 A GB8802577 A GB 8802577A GB 2201563 A GB2201563 A GB 2201563A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signals
- surveillance system
- transducer means
- transceiver means
- command
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19639—Details of the system layout
- G08B13/19647—Systems specially adapted for intrusion detection in or around a vehicle
- G08B13/1965—Systems specially adapted for intrusion detection in or around a vehicle the vehicle being an aircraft
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19639—Details of the system layout
- G08B13/19641—Multiple cameras having overlapping views on a single scene
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19665—Details related to the storage of video surveillance data
- G08B13/19671—Addition of non-video data, i.e. metadata, to video stream
- G08B13/19673—Addition of time stamp, i.e. time metadata, to video stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Library & Information Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Signal Processing (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
A surveillance system 2 comprising an object 4 to be surveyed e.g. a ship or building, at least one closed circuit slow scan television camera 6 which is positioned in the object 4 and which is for surveying a predetermined area, first transducer means 8 which is positioned in the object 4 and which is for converting video signals from the camera 6 into audio signals, first transceiver means 10 which is positioned in the object 4 and which is for transmitting the audio signals from the first transducer means 8 and for receiving command signals, second transceiver means 12 which is positioned in a command base 14 remote from the object 4 and which is for receiving the audio signals from the first transceiver means 10 and four sending the command signals, second transducer means 16 which is positioned in the command base 14 and which is for converting the audio signals received from the second transceiver means 12 into video signals, and at least one television monitor 18 for providing a visual display consequent upon receiving the video signals from the second transducer means 16. <IMAGE>
Description
A SURVEILLANCE SYSTEM
This invention relates to a surveillance system.
It is an aim of the present invention to provide a surveillance system which can be used to survey theinside of an object. The object may be a building such as a bank in which case the inside of the bank may be surveyed from a mobile command base in the form of a police car or other police vehicle. The object may also be a ship in which case the inside of a ship may be surveyed from a mobile command base in the form of another ship or an aircraft, or the inside of the ship may be surveyed from a stationary command base on land.
Accordingly, this invention provides a surveillance system comprising an object to be surveyed, at least one closed circuit slow scan television camera which is positioned in the object and which is for surveying a predetermined area, -first transducer means which is positioned in the object and which is for converting video signals from the camera into audio signals, first transceiver means which is positioned in the object and which is for transmitting the audio signals from the first transducer means and for receiving command signals, second transceiver means which is positioned in a command base remote from the object and which is for receiving the - audio signals from the first transceiver means and for sending the command signals, second transducer means which is positioned in the command base and which is for converting the audio signals received by the second transceiver means into video signals, and at least one television monitor for providing a visual display consequent upon receiving the video signals from the second transducer means.
The surveillance system of the invention is especially useful for land and sea hostage/hijack situations.
Where such a situation occurs, with the surveillance system of the present invention, it is only necessary for an appropriate command signal to be issued to cause the camera to operate and to cause pictures of the situation to be transmitted back to a television monitor in the command base.
The transmitted pictures can be enlarged as may be desired, for example to ascertain the identity of a hijacker and/or whether or not the hijacker has a real gun, grenade or the like or whether the gun, grenade or the like is an imitation device. It-will thus be apparent that the surveillance system of the invention will enable the police or other authorities to be in a good position to know exactly what action to take.
The pictures can be displayed as black and white or colour pictures.
The command base may be a command base in a police land vehicle, or the command base may be in a ship or an aircraft.
The command signals will usually be start-up signals for initiating operation of the surveillance system.
However, if desired, the start-up signals may be other signals for actuating the commencement of other desired functions.
The first and the second transceiver means may be substantially identical pieces of equipment.
The first transducer means will usually convert the video signals from the camera to audio signals on cassette tape. The audio signals will usually be transmitted from the object to the command base as radio signals. For example, the audio signals may be transmitted on normal land/or sea radio frequencies such for example as the sea Mayday frequency.
Advantageously, the first transducer means and the first transceiver means are housed together in a single piece of equipment. Similarly, the second transducer means and the second transceiver means are also advantageously housed together in a single piece of equipment. Such single pieces of equipment can be arranged to be mobile or static.
The transducer means and the transceiver means are advantageously in the form of a single piece of equipment known asIBSONSCAN II. TheIBSONSCAN II is manufactured and sold by msonmain Limited, of Uxbridge, Middlesex,
England. Other equipment can of course be used if desired.
Preferably, the first and the second transceiver means record on to tape so that they have a playback facility for helping repeated surveillance of the object.
Usually, the first and the second transceiver means will have a rewind facility.
Any appropriate camera may be employed. Examples of cameras that may be employed are those manufactured by
Ademco, Philips and Norbane. The cameras may be positioned where desired and appropriate in the object.
The cameras may be connected to an independent power supply to ensure that the power to the cameras cannot easily be switched off. Preferably, the entire surveillance system is such that it cannot be switched on or off or otherwise interferred with by unauthorised personnel so that, in the event that criminals should know that they are being filmed, they cannot instruct personnel to switch off the surveillance system.
The cameras can be positioned at random positions in the same type of object if desired in order that criminals cannot easily know the location of the cameras. The cameras can also be concealed where possible, for example in overhead compartments, again so that their presence cannot easily be established.
Preferably, the surveillance system is such that the TV monitor has a picture hold facility.
The surveillance system may be one which has a visual display facility only, the signals passing from the object to the command base then being signals which are only for permitting the visual display. Alternatively, the surveillance system may be one which has a visual display facility and also a speech facility, the signals passing from the object to the command base then being first signals which- permit the visual display and second signals which permit the speech.
An embodiment of the invention will now be described solely by way of example and with reference to the accompanying drawing which shows in diagramatic form a surveillance system for a bank.
Referring to the drawing, there is shown a bank surveillance system 2 comprising a bank 4 and four closed circuit slow scan television cameras 6 which are positioned in the-bank 4 and which are for surveying predetermined areas in the bank 4. One camera 6 will be employed for surveying each predetermined area.
The bank surveillance system 2 also comprises first transducer means 8 which is positioned in the bank 4 and which is for converting video signals from the cameras 6 into audio signals. First transceiver means 10 is positioned in the bank 4 and is for transmitting the audio signals from the first transducer means 8 and for receiving command signals.
The bank surveillance system 2 also comprises second transceiver means 12 which is positioned in a command base in the form of a police car 14. The police car 14 is remote from the bank 4 and it forms a mobile command base. The second transceiver means 12 is for receiving audio signals from the first transceiver means 10 and for sending the command signals. The police car 14 is also provided with second transducer means 16 which is for converting the audio signals received by the second transceiver means 12 into video signals. A television monitor 18 is linked to the second transducer means 16 for providing a visual display consequent upon receiving the video signals from the second transducer means 16.
rhe cameras 6 are controlled by a control device 20 which is activated by receiving appropriate control signals from the first transducer means 8. The control device 20 can be used to make the cameras 6 pan, . tilt, zoom or perform other functions. The control device 20 can also be used to activate lights or perform other control functions.
rhe first transducer means 8 and the first transceiver means 10 are advantageously formed together a single housing as a single piece of equipment 22. Similarly, the second transceiver means 12 and the second transducer means 16 are advantageously formed together in a single housing as a single piece of equipment 24. The equipment 22,24 is advantageously the equipment referred to above and known as ISOMSCAN II. ite equipment 22,24 is such that it enables the pictures to be sent as a continuous series of still pictures, updated every twenty two seconds, through standard voice frequency radio channels.The equipment 22 is able to take a television frame from the television cameras 6, convert the video signals to audio signals, record them, dial the police car 14, make a security check, and send the pictures, if desired accompanied by the time, date, source and any other reauired information.
The equipment 24 is able to receive the signals from the equipment 22, make a security check, accept the signals, and record the signals. the equipment 24 contemporaneously restores the signal to a video mode and allows the picture to be displayed on the television monitor 18, together with any other transmitted information such for example as the above mentioned time, date and source.
'he equipment 22,24 can control the entire bank surveillance system 2 and the transmitting equipment by sending up to sixty four separate instructions. If a poor connection is made, the equipment 22 can be instructed to rewind and replay its recording of an entire sequence.
'ishe equipment 24 can receive an entire transmission and it also has the facility to enable a single frame to be held on the television monitor 18. .An entire transmission can be played back later for analysis and hard copying if desired.
It is envisaged that the bank surveillance system 2 will be especially useful for dealing with hijack/hostage situations.
It is to be appreciated that the embodiment of the invention described above with reference to the accompanying drawing has been given by way of example only and that modifications may be effected. Thus, for example, more or less than the illustrated four cameras 6 may be employed, and more than one television monitor 18 may also be employed. Also, other objects such as ships or buildingsratherthan banks can be surveyed. With a ship, the command base could be stationary on land or it could be a mobile command base in another ship or in an aircraft. Generally, the surveillance system may be used for ship to land, ship to ship, ship to oil rig, oil rig to oil rig, land to land, vehicle to vehicle, vehicle to base, and base to vehicle surveillance. The ships may be, for example ocean liners or tankers. The vehicles may be police cars, police coaches, or bullion or other money transporting lorries. The surveillance system may operate on the radio frequency of the ship, oil rig or vehicle, or it may operate via their telephone link.
Claims (9)
1. A surveillance system comprising an object at least one closed circuit slow scan television camera which is positioned in the object and which is for surveying a predetermined area, first transducer means which is positioned in the object and which is for converting video signals from the camera into audio signals, first transceiver means which is positioned in the object and which is for transmitting the audio signals from the first transducer means and for receiving command signals, second transceiver means which is positioned in a command base remote from the object and which is for receiving the audio signals from the first transceiver means and for sending the command signals, second transducer means which is positioned in the command base and which is for converting the audio signals received by the second transceiver means into video signals, and at least one television monitor for providing a visual display consequent upon receiving the video signals from the second transducer means.
i
2. A surveillance system according to claim 1 in which the first transducer means is for converting the video signals from the camera to audio signals on cassette tape.
3- A surveillance system according to claim 1 or claim 2 in. which the first transducer means and the first transceiver means are housed together in a single piece of equipment, and in which the second transducer means and the second transceiver means are also housed together in a single piece of equipment.
4. A surveillance system according to any one of the preceding claims in which the first and the second transceiver means record on to tape so that they have a play back facility for helping repeated surveillance of the object.
5. A surveillance system according to any one of the preceding claims in which the first and the second transceiver means have a rewind facility.
6. A surveillance system according to any one of the preceding claims in which the television monitor has a picture hold facility.
7. A surveillance system according to any one of the preceding claims and which has a visual display facility only, the signals passing from the object to the command base then being signals which are only for permitting the visual display.
8. A surveillance system according to any one of claims I - 6 and which has a visual display facility and also a speech facility, the signals passing from the object to the command base then being first signals which permit the visual display and second signals which permit the speech.
9. A surveillance system substantially as herein described with reference to the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB878704138A GB8704138D0 (en) | 1987-02-23 | 1987-02-23 | Surveillance system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8802577D0 GB8802577D0 (en) | 1988-03-02 |
| GB2201563A true GB2201563A (en) | 1988-09-01 |
Family
ID=10612733
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB878704138A Pending GB8704138D0 (en) | 1987-02-23 | 1987-02-23 | Surveillance system |
| GB08802577A Withdrawn GB2201563A (en) | 1987-02-23 | 1988-02-05 | A surveillance system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB878704138A Pending GB8704138D0 (en) | 1987-02-23 | 1987-02-23 | Surveillance system |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB8704138D0 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2253121A (en) * | 1991-01-24 | 1992-08-26 | Northern Telecom Ltd | Surveillance system sends compressed video down telephone line |
| GB2256771A (en) * | 1991-06-11 | 1992-12-16 | Cable Srl | Slow-scanning remote surveillance system using mobile cellular radio communications |
| GB2258114A (en) * | 1991-07-26 | 1993-01-27 | Rachel Mary Turner | Video monitoring system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3688029A (en) * | 1968-09-23 | 1972-08-29 | Otto E Bartoe Jr | Cableless acoustically linked underwater television system |
| EP0004010A1 (en) * | 1978-02-28 | 1979-09-19 | Siemens Aktiengesellschaft | System for transmitting single television pictures |
| EP0010813A1 (en) * | 1978-10-27 | 1980-05-14 | Videophone Automatic Systems B.V. | A system for transmitting visual information via a low-frequency system, such as a telephone system |
| GB1602168A (en) * | 1977-04-01 | 1981-11-11 | Schraaf Abe V D | System for the transmission of slow-scan television images |
| EP0137320A2 (en) * | 1983-09-14 | 1985-04-17 | Atis Assmann Gmbh | Video surveillance device |
| GB2186148A (en) * | 1986-02-03 | 1987-08-05 | Sayzen Ltd | An aircraft surveillance system |
-
1987
- 1987-02-23 GB GB878704138A patent/GB8704138D0/en active Pending
-
1988
- 1988-02-05 GB GB08802577A patent/GB2201563A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3688029A (en) * | 1968-09-23 | 1972-08-29 | Otto E Bartoe Jr | Cableless acoustically linked underwater television system |
| GB1602168A (en) * | 1977-04-01 | 1981-11-11 | Schraaf Abe V D | System for the transmission of slow-scan television images |
| EP0004010A1 (en) * | 1978-02-28 | 1979-09-19 | Siemens Aktiengesellschaft | System for transmitting single television pictures |
| EP0010813A1 (en) * | 1978-10-27 | 1980-05-14 | Videophone Automatic Systems B.V. | A system for transmitting visual information via a low-frequency system, such as a telephone system |
| EP0137320A2 (en) * | 1983-09-14 | 1985-04-17 | Atis Assmann Gmbh | Video surveillance device |
| GB2186148A (en) * | 1986-02-03 | 1987-08-05 | Sayzen Ltd | An aircraft surveillance system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2253121A (en) * | 1991-01-24 | 1992-08-26 | Northern Telecom Ltd | Surveillance system sends compressed video down telephone line |
| GB2253121B (en) * | 1991-01-24 | 1995-09-06 | Northern Telecom Ltd | Surveillance system |
| GB2256771A (en) * | 1991-06-11 | 1992-12-16 | Cable Srl | Slow-scanning remote surveillance system using mobile cellular radio communications |
| ES2038930A2 (en) * | 1991-06-11 | 1993-08-01 | Cable Srl | Slow-scanning remote surveillance system using mobile cellular radio communications |
| GB2258114A (en) * | 1991-07-26 | 1993-01-27 | Rachel Mary Turner | Video monitoring system |
| GB2258114B (en) * | 1991-07-26 | 1995-05-17 | Rachel Mary Turner | A remote baby monitoring system |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8704138D0 (en) | 1987-04-01 |
| GB8802577D0 (en) | 1988-03-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |