1 Scope of application
This process standard applies to the installation of civil CCTV surveillance systems with the primary purpose of surveillance.
2 construction preparation
2.1 Materials and equipment
2.1.1 Front-end equipment: matrix host, control keyboard, long-delay video recorder (or hard disk recorder), picture splitter, surveillance
, computer, system software, printers, uninterruptible power supplies, etc.
2.1.2 Transmission part: optical/electrical converter, signal amplifier, video distributor, splitter box, coaxial cable, optical cable, power supply
Lines, control lines, etc. Must meet the design requirements of the specifications and models, with product certification and 3C certification mark.
2.1.3 Terminal equipment: camera, lens, pan/tilt, decoder, shield, bracket, infrared light, lightning protection grounding device, etc.
2.1.4 The above equipment materials shall be selected according to the contract documents and design requirements, and the equipment, materials and software shall be tested for entry and the entry inspection records shall be filled out. Equipment should have product certification, test report, "CCC" certification mark, installation and use instructions. If it is an imported product, it is required to provide proof of origin and commodity inspection certificate, quality certificate, inspection report and Chinese text of installation, use and maintenance instructions. Before installation, the equipment should be inspected according to the instruction manual before installation.
2.1.5 Common SYV coaxial cable, the main characteristics are shown in Table 2.1.5.
2.1.6 Galvanized materials: galvanized steel pipes, galvanized wire troughs, metal expansion bolts, metal hoses, etc.
2.1.7 other materials: plastic expansion tube, machine screw, flat washer, spring washer, terminal block, insulating tape, joint, etc.
2.2 Machine equipment
2.2.1 Installation equipment: hand drill, impact drill, electrician combination tool, walkie-talkie, special crimping pliers for BNC joints, optical cable connecting equipment, ladder.
2.2.2 Measuring instruments: 250V megger, 500V megger, level, steel ruler, small line, line pendant.
2.3 Working conditions
2.3.1 The interior of the civil engineering project is completed, and the doors, windows and door locks are fully assembled.
2.3.2 Management room, weak electric shaft, other public parts in the building and the surrounding wiring cable trenches, troughs, pipes, boxes and boxes are completed.
2.4 Technical preparation
2.4.1 The construction drawings are complete.
2.4.2 The construction plan has been completed and approved.
2.4.3 Before construction, the construction personnel should be familiar with the drawings, plans and professional design, installation and operation instructions, and conduct training and safety and technical disclosure.
3 operating process
3.1 Process
3.2 method of operation
3.2.1 Pipeline embedded
3.2.1.1 Pipe laying: Check whether there is burr on the inside of the pipe before laying, whether the galvanized layer or anti-rust paint is intact, and the pipe is not smooth.
Straighten straight.
(1) Dark laying
a. Wall-standing riser: The steel pipe should be placed in the center of the wall, and then the junction box is stabilized according to the elevation.
b. Concrete wall and plate piping: The box and box can be welded to the steel bar, and the wire is tied and fixed every 1m when the pipe is applied.
(2) laying down
a. When applying the tube, first screw the screw at one end of the tube card into half, then lay the tube in the tube card and screw the screws one by one. When using an iron bracket, the steel pipe can be fixed to the bracket, and the pipe must not be welded to other pipes.
b. Allowable deviation of piping when laying horizontally or vertically: When the pipeline is within 2m, the deviation is 3mm, and the total length should not exceed 1/2 of the inner diameter of the pipe.
(3) Pipeline laying at the room
a. Cable ducts laid underground in outdoor, the wall thickness should be greater than 2mm, and the buried depth should not be less than 0.8m.
b. The nozzle of the outdoor conduit should be placed in the box or box. All nozzles should be sealed after they have been threaded into the cable.
(4) Pipe connection
a. Pipe-to-tube connection? Pipe threaded wire connection: The threaded wire must not be disordered. The pipe clamp must use the wire clamp. After a good hoop, the nozzle should respond
Strictly, the exposed thread should not be more than 2 buckles.
Casing connection: Non-galvanized pipe used only for dark piping and wall thickness greater than 2mm. The length of the casing is 2.2 times of the diameter of the connecting pipe; the opposite end of the connecting pipe should be at the center of the casing, and the welding joint should be welded firmly and tightly. Metal conduits are strictly prohibited from joint welding, and galvanized and steel conduits with a wall thickness of 2 mm or less shall not be welded by casing. Galvanized steel conduits and flexible conduits shall not be welded across the grounding wire. The grounding wire shall be a soft copper wire with a cross-sectional area of ​​not less than 4 mm2 and a special grounding card shall be used for the jumper connection.
b. The connection box between the tube and the box, the box, and the opening of the box should be neat and match the diameter of the tube. One tube and one hole are required, and the long hole is not allowed. It is strictly forbidden to use electricity or gas welding holes in iron boxes and boxes. The position of the nozzle into the box should be arranged in the second layer of the box. The grounding line should be welded to the grounded flat steel reserved in the dark assembly box. The buckle between the tube and the box can be welded to the concealed box. ~3 buckle. More than two tubes into the box, the box should be the same length, uniform spacing, neatly arranged, see figure
3.2.1.1.
c. When the metal hose is introduced into the equipment, the following requirements shall be met:
When metal hoses are connected to steel pipes or equipment, they should be connected by metal hose connectors.
The metal hose is fixed by a pipe clamp with a fixed spacing of no more than 1 m.
Do not use metal hoses as grounding conductors.
3.2.1.2 Trunking laying
(1) Trunking installation requirements
a. The straight section of the wire trough should be connected by a connecting plate. It should be fastened with washers, spring washers and nuts. The joint should be tight and smooth without gaps.
b. When the wire trough is crossed, turned, and T-connected, it shall be connected by single-pass, two-way, three-way, four-way, etc., and the terminal of the trough shall be installed with plugging. A junction box should be placed at the wire connector or placed inside the electrical appliance.
c. When the wire trough adopts steel pipe to introduce or lead the wire, the pipe mouth can be fixed on the wire groove by using a pipe cutter or a nut.
d. If the surface of the building has a slope, the trunking should vary with its slope.
e. The wire trough cover should be flat after installation, without warping angle, and the position of the outlet should be accurate.
f. When laying in the ceiling, if the ceiling cannot be used, the inspection hole should be left.
g. Leave a 50mm gap around the wall of the wall and seal it with fireproof material.
h. The metal trunking and its metal brackets and the metal conduits leading to the lead must be grounded reliably.
i. When the cable trough passes through the deformation joint (expansion joint, settlement joint) of the building, the trunking itself should be disconnected, and the inner connecting plate is overlapped in the trough without fixing. Both the protective ground wire and the inner conductor of the slot should have a compensation margin.
j. The cable troughs laid in shafts, suspended ceilings, passages, mezzanines and equipment floors shall comply with the relevant fire protection requirements of the current national standard “Fire Protection Code for High-rise Civil Buildings†GB50045.
(2) Generally, the universal spreader is generally used in the hoisting metal trunking installation steel structure. Before installation, the spreader and accessories are assembled into a whole, and the clamp is used to secure the steel structure.
a. When assembling the straight section of the line slot, the trunk line should be made first, then the branch line should be made, and the hoist and the line slot should be fixed by the butterfly clip and assembled step by piece.
b. The wire trough and the wire trough can be fastened with a nut or a female connector with a flat pad and a spring washer.
c. The turning part should adopt the upper elbow and the lower elbow, and the installation angle should be appropriate.
d. The outlet should be connected by the outlet box, and the end part should be sealed. At the entrance and exit of the box, box and cabinet, the foot should be connected.
(3) Ground metal trunking installation
a. According to the position of the elastic wire, fix the wire trough bracket, place the ground metal wire trough on the bracket, then connect the trough and connect the outlet.
b. The connection between the cable trough and the junction box should be correctly used first with the junction box and pipe fittings, and the connection should be fixed firmly.
c. After the ground trough and accessories are all installed, adjust the system and adjust the trunk line, branch line, junction box joint, turn, corner and exit according to the ground thickness. The level is level with the ground and the cover is Cover it and seal it tightly to prevent pollution and blockage until the end of the civil construction.
(4) Trunking protection grounding installation
a. The metal trunking and its support should not be less than the full length
2 locations are connected to the grounding trunk.
b. The two ends of the non-galvanized wire-to-slot connection plate are connected to the copper core grounding wire, and the minimum allowable cross-sectional area of ​​the grounding wire is not less than 6mm.
2.
3.2.2 Distribution box installation
3.2.2.1 The installation position of the junction box should meet the design requirements. When there is no requirement for the design, the height should be 1.4m from the bottom margin.
3.2.2.2 When the cabinet is concealed, the cabinet panel and frame shall be tightly matched to the surface of the building. It is strictly forbidden to weld the box to the pre-embedded tube by electric welding or gas welding, and the tube is fixed by the lock nut.
3.2.2.3 When installing the splitter box, first find the level and then drill the hole, and bury the expansion bolt to fix the box. The back panel of the box is required to be flush with the wall surface. Then, the lead wire and the inner lead wire are connected and crimped by the terminal, and put back into the terminal box.
3.2.2.4 The decoder box is generally installed near the on-site camera. When installing in the ceiling, the inspection port should be reserved. The outdoor installation should have good waterproofness, and the lightning protection grounding measures should be taken.
3.2.2.5 When the transmission line is too long to use an amplifier, the installation position of the amplifier box should meet the design requirements and have good waterproofness.
3.2.3 Line laying
3.2.3.1 Before laying the cable, it should be insulated (except optical cable and coaxial cable). The insulation resistance between the cable and the ground should be greater than 0.5MΩ.
3.2.3.2 The length of the cable to be laid shall be selected according to the construction drawing.
3.2.3.3 The laying cables should be neatly arranged, straight and not twisted, minimize the intersection, the thick line at the intersection is at the bottom, and the thin line is at the top. The power cord should be laid separately from the control cable and video cable.
3.2.3.4 When multiple cables are inserted into the pipe, the cables must not be twisted. There must be no connectors in the pipe. The connectors must be connected at the wire box (box).
3.2.3.5 When the conduit is not directly connected to the equipment wiring, the metal hose must be connected by the transition between the outlet of the conduit and the terminal of the equipment. The length of the hose shall not exceed 1m, and the cable shall not be exposed directly.
3.2.3.6 When the cable is parallel or cross-connected with the power cable, the spacing shall not be less than 0.3m; when parallel or cross-laying with the communication cable, the spacing shall not be less than 0.1m.
3.2.3.7 Cables that enter the cabinet should be bundled and fixed.
3.2.3.8 When laying cables, the bending radius of the cable shall not be less than 20 times the outer diameter of the cable. The traction end of the cable shall be treated technically. The reserved length of the cable joint shall not be less than 8m; the bending radius of the coaxial cable shall be laid. More than 15 times the outer diameter of the cable.
3.2.3.9 When laying cables over overhead, the cable slings should be fixed on the poles, and then the cables should be hung on the slings. Hook spacing is
0.5~0.6m. Depending on the climatic conditions, each rod should be left with a margin.
3.2.3.10 After the cable is set up, the end of the cable should be wrapped, and the disk should be placed in a reserved box of the cable. The reserved box should be fixed on the pole. The underground cable must be protected by steel pipe when it is led.
3.2.3.11 Outdoor pipe cables shall be protected by steel pipes when they are taken out of the ground. The steel pipe should not protrude less than 2.5m from the ground and should be buried in the ground for 0.3~0.5m.
3.2.3.12 The cable leading to the camera terminal should be taken from the lower part of the device, leaving a margin that does not affect the rotation of the camera. The coaxial cable, power cable and control cable of the camera should be fixed by the winding tube, and should not be used. The camera plug is subjected to the cable's own weight.
3.2.3.13 Both ends of the cable to be laid must be marked. Shielded control cables and shields for coaxial cables should be reliably grounded at one end.
3.2.3.14 Trunking wiring shall meet the following requirements:
(1) The sum of the cross-sectional areas of the conductors in the same trunking shall not exceed 40% of the internal cross-sectional area.
(2) If the wires of different voltages, different circuits and different frequencies are placed in the same line slot, the partition should be added in the middle.
(3) When crossing the deformation joint of the building, the wire should have a compensation margin.
(4) The reserved length of the wires in the junction box should not exceed 150mm; the reserved length of the wires in the disk and box should be 1/2 of the base circumference.
3.2.3.15 Monitoring indoor cable laying shall meet the following requirements:
(1) When using a ground trough or wall trough, the cable should be routed from the bottom of the rack or console, straighten the cable along the direction of the disc, and the bend should meet the radius of curvature of the cable. The cable should be bundled at no more than 30mm on both sides of the bend. It should be tied once every 100~200mm according to the number of cables.
(2) When using the raised floor, the cable should be laid along the line groove under the floor and straight without twisting.
3.2.4 Terminal Equipment Installation
3.2.4.1 Terminal device installation steps are as follows:
(1) Installation of brackets and hangers: Before installation, determine the specific installation location according to the construction drawing, and then install and fix the supports and hangers.
Fix it firmly and meet the load requirements. The support surface of the bracket should be level.
(2) PTZ installation: The gimbal should be firmly fixed on the bracket and keep its position level.
(3) Camera and shield installation:
Refer to the installation requirements of the equipment installation manual, install the camera with lens in the shield, and then install it on the cloud platform (the platform is installed directly on the support and hanger), and the installation should be firm and stable.
(4) Decoder installation: The decoder should be installed near the camera and convenient for fixing and maintenance. If it is installed in the open air, it needs to be done.
Good rain and lightning protection measures.
3.2.4.2 Before the camera is installed, the camera should be powered on one by one for detection and coarse adjustment. It can be installed after normal operation. The installation is first pre-installed in place according to the design requirements.
3.2.4.3 Before the fixed camera is installed, the aperture and lens should be adjusted first, then the camera should be pre-installed. After power-on test and fine adjustment, check the functions, observe the coverage of the surveillance area and the image quality, and meet the requirements. fixed.
3.2.4.4 The fixed camera is bolted to the bracket, and the adjustment of the camera direction has a certain range.
3.2.4.5 The choice of lens and camera should match each other. The fixed camera and lens can be installed after being debugged.
3.2.4.6 The installation of the camera bracket and the pan/tilt head shall be installed in accordance with the requirements of the product technical documents, combined with the actual situation on site.
The fixing should be safe and reliable, and the azimuth and elevation angles and the starting direction of the gimbal should be able to be flexibly adjusted within the design requirements.
3.2.4.7 The camera should be installed near the monitoring target and not susceptible to external damage. The installation location should not affect the operation of the field equipment and the normal activities of personnel. Installation height, the indoor should be 2.5~5m from the ground or 0.2m below the ceiling, and the outdoor should be 3.5~10m from the ground.
3.2.4.8 When the camera needs to be concealed, a pinhole lens can be used to hide the camera in the ceiling. The camera inside the elevator should be installed at the opposite corner of the elevator operation at the top of the elevator car and should be able to monitor the panoramic view of the elevator.
3.2.4.9 Camera lens should monitor the target in the direction of the light source to avoid back-light installation; when back-light installation is required, the contrast of the surveillance area should be reduced.
3.2.5 Equipment room installation
3.2.5.1 When the TV wall is fixed on the wall, the bracket should be fixed; when the TV wall is installed on the floor, the base should be fixed to the ground. The installation of the TV wall shall be vertical and stable. The deviation of the verticality shall not exceed 1/1000 of the video walls and be arranged side by side. The panels shall be on the same plane and parallel to the reference line. The front-rear deviation shall not exceed 2 mm, and the gap between the two frames shall not be More than 2mm. The equipment installed in the TV wall should be firm and straight; the fixing screws, gaskets and spring washers on the TV wall frame should be tightened and not missing.
3.2.5.2 The console installation location should meet the design requirements. The console is placed vertically and the table top is flat; the contact between the connector and the equipment should be reliable, the installation should be firm, and the internal wiring should meet the design requirements without distortion or shedding.
3.2.5.3 The monitor should be installed on a video wall or console. The installation position should be such that the screen is not exposed to external light; when there is unavoidable illumination, the hood should be blocked; the external operable parts of the monitor, matrix host, long delay recorder, picture splitter, control keyboard, etc. Should be exposed outside the console.
3.2.6 Equipment wiring, debugging
3.2.6.1 Before wiring, the cable that has been laid out is tested again for ground and line insulation. The insulation resistance value should be greater than 0.5MΩ.
3.2.6.2 The equipment room is connected with cables by special joints, and the crimping is firm. The shield of the equipment and cables should be crimped to the protective grounding wire. The grounding resistance should be no more than 1Ω.
3.2.6.3 After the initial installation of the camera (three variables), in addition to testing the aperture, lens and steering, it should also detect the noise, temperature change, range of rotation angle, etc. on-site, fully comply with the equipment technical documentation indicators before fixing. .
3.2.6.4 After the completion of the unit debugging, the system is debugged, the video playback effect of the detection system, the video switching function, the camera effect under the standard illumination, the functions of the matrix host's power exchange, control, programming, inspection, recording, etc. are fully designed. Requirements, "Civil Closed Circuit Surveillance Television System Engineering Technical Specification" GB50198 is not less than 4 points before it can be put into use.
3.2.6.5 After the system is debugged, it is necessary to debug the inter-subsystem linkage to detect the network upload function of the subsystem and the alarm signals of the access control, intrusion alarm, patrol management and other subsystems.
3.2.6.6 System testing
(1) System function detection: PTZ rotation, lens, aperture adjustment, focus adjustment, zoom, image function change, shield function
Meet the design requirements.
(2) Image quality detection: Under the standard illumination of the camera, the detection of low resolution and anti-interference ability is performed.
(3) System overall function detection: monitoring range matrix monitors host's functions of power conversion, control, programming, inspection, recording, etc.; digital video recording monitoring system should also check host crash record, image display and recording speed, image quality, and The front-end device's control function, communication interface function, and remote networking function; the digital hard disk video surveillance system not only detects the recording speed, but also detects the retrieval and playback functions of the record.
(4) Detection of system linkage function: The linkage function should include linkage control function with other security defense subsystems.
(5) The system function and software are all tested, and the function meets the design requirements as qualified. When the pass rate is 100%, the system function test is qualified.
Musical Greeting cards (recordable greeting cards):
Ningbo AST Industry Co.,Ltd has 17 Years Experiences to produce the greeting cards,Christmas Card,Birthday cards,Religious Cards,musical greeting cards,recordable greeting cards, greeting cards with Led lights,Pop-up Greeting cards etc.We can assure you of competive price,high quality,prompt delivery and technology supporting.
1. Musical Greeting cards Application :
The Greeting cards are usually used for celebration,promotion,birthday,Holiday and so on.
2. recordable greeting cards Classification:
There are the General Greeting Cards,Recordable Greeting cards,Music Greeting cards,Led Greeting cards and Pop-up Greeting cards.
A,General Greeting Cards,which is only paper cards,printed according to the Customers' Artwork
B.Recordable Greeting cards----The Clients can record their own messages and playback them.
  |
|
C.Musical Greeting cards---The clients provide their audios,then we programmed them into the Sound module,then it will play the customized audios.
D.Led Greeting Cards--The Greeting cards have led lights,which can flash different color.
E.Pop-up Greeting Cards
  |
|
3.Sound Quality:Clearly and Loudly ( 16Khz Sampling Rate)
4.Activated way:
Slide tongue---open the cards,it will play the message automatically.
Push buttons--press the button to play the message/audio/music
5.Long Lifespan
6.Speaker:21mm,27mm,29mm,36mm,40mm,57mm etc. Plastic or Metal
7.Battery:AA, AAA, AG13, AG10, AG3 and so on environmental
8.Size and Artwork: Customized
9.PCB:Customized Size (OEM or ODM) or our existed standard size
10.Certification:CE ,Rohs
11.Export to: USA, UK,Canada,Germany,
Turkey,Russia,Poland,Switzerland,Netherland ,Frence Hungary
,Australia,New Zealand, Brazil, Columbia,Argentina,Thainland,Singapore ,
Malaysia and so on
Musical Greeting Cards, Recordable Greeting Cards, Musical Birthday Cards
AST Industry Co.,LTD , https://www.astsoundchip.com