Gallery: intelligent building alarm system solutions

First, an overview

A new building in an area, 40 layers.

The floor is intelligent degree requires relatively high comprehensive office building, the building of 25 layer following is rented office space, 25 layers above the public defense of Office and command centers, and therefore of great significance for the security alarm system requirements is relatively high and special.

2. design requirements

The building of anti-theft alarm system, the owner made the following request, the system installed in public areas, mobile detector in some indoor installation of emergency button that you want to use the multimedia computer management system, requested will be divided into several zones, you can use the keyboard on the system alarm disarm, cloth to appear on the keyboard and vocal, the computer must have the details of the alert zone and automatically eject the electronic map, alarm signals to upload to the Management Center, ba system stakeholders also raised the patrol system and alarm system.

III. Programme overview

For the owner's request, we design to ds7400xi bus system alarm host hardware platform security center software as software platform for large alarm system.

Ds7400xi is bus-multi zone alarm control hosts, all with functionality, scalability, quality and stability characteristics, are widely used in the community, buildings, factories, and other occasions in the large alarm system.

The main features of the host are:

1. stand with eight to two core bus (without power supply) Extensible 120 zone, a total of 128 zones.

(Note: the host 4.0 version number before total defense to 128, 4.0 after the start of the number of total protection zones, for currently listed 248 4.0 later versions, the programme achieve earlier, host version 3.0 + series)

2. bus length up to 1.6km (f φ1.0 m m 2).

You can take bus amplifier to extend the length of the bus. You can use a star, concatenated and mixed etc. to flexible cabling, in no more than the total number of stand, paragraphs bus bus expansion device is no limit to the number of requests.

3. Add 15 keyboard, divided into eight separate partitions, separate independent defense/disarmed.

4.90 group personal action password; 15 programmable zones functionality; 400 historical events for inspection.

5. you can select multiple zone expansion modules; there are 8 zone expansion modules ds7432, single-zone expansion modules ds7457, dual-zone expansion modules ds7460, with an output of single-zone expansion modules ds7465 and probe with code.

6. auxiliary output bus interface can connect ds7488 and dsr-32 relay output modules, and other peripherals.

For zone alarm and output one-to-one, many-to-one, one-to-many and many other alarm/output relationship.

7. adoption of the ds7412 modules can be converted to the RS232 interface for direct connection with the computer, or through a network interface device and lan connections.

8. accessible via pstn and alarm centre connection, support for 4 + 2, contactid, and other distribution formats.

9. for keyboard programming or remote control programming.

10. take the self-test function, online self detection system, part of the normal or not, and through the keyboard and display fault part of means of communication, facilitating maintenance and management.

In this system there are a total of 250 zone and 80 patrol point, through the Security Center software can be the trigger signal ds7400xi defense as a patrol of signal processing, so the system has a total of 330 zone number, total needs 3 ds7400xi host (v3.09 version).

The system in addition to patrol point, divided into eight partitions, each partition contains the unified management of floors, belongs to host liquid crystal keyboard arm/disarm and eliminating police, all of the information and alarm information is real-time in Security Center management software in the reaction, and automatically shows the warning area of the electronic map.

In terms of processing on the bus, because the building relative structure and clear, so the wiring is relatively easy, 3 1 root rvv mm2 4-core wire throughout the pipeline as well to the top three hosts of the bus, do not use more core of all the bus lines are placed in a multiple-core wire in order to prevent bus between potentially interfere with each other.

And bus extension equipment selection on use of 8 zone ds7432 expansion module, installed in the floor of the weak current wells, each floor of the detector and patrol buttons have the lines into the layer of weak current shaft connected to the power supply on and ds7432.

In guard tour system for processing, as will patrol system and alarm system integrated with the patrol system is on-line wired patrol system, will the zone access ds7400xi patrol switch as a 24-hour use of intangible zone, the Security Center software defined the zone to patrol zone and therefore can display real-time State Patrol.

The system can freely define patrol line, you can start multiple scheduled auto patrol line, you can manually start the patrol line and may prompt timely patrol, patrol is not timely, the patrol ahead, patrol errors trigger information. In the patrol button select, we chose a design more innovative patrol button, the button by Reed pipe and led, in accordance with normally open contact method to connect to the correct input on DS7432, when the band patrol officers will patrol with magnetic pen touch of the button, the Reed pipes will pick-up, light-emitting diodes and defense line conduction and shiny, tip patrol signal successfully trigger. Actual performance is quite good.

The design of the alarm linkage, we as a party provides two solutions, one soft linkage, we provide security center software interface through the appropriate API function to superior BA management system through a local area network transfer alert information.

Another is theHard linkage, through model 32 for DSR32 relay output module will alarm information through contacts connected to BA systems DI acquisition board, one DS7400XI host (4.0 version) you can connect four DSR32 relay output modules, the system realizes a one-to-one linkage, from superior BA system then on acquisition to the linkage of signal processing. Actual use since the hard easy linkage programme implementation, signal reaction speed is quite fast, so using this method.

The choice of the detector, taking into account the complex environment of relatively stable, attractive and relatively high requirements, so a large number of selection of the slimline ceiling DS936 passive infrared detector.

IV. conclusion:

The system uses a total of 3 single host, need DS7400XI PC provides three serial ports, therefore with a multi-channel serial port expander, system debugging has been damaged DS7412 serial communication module, the analysis of the phenomenon is due to the use of multi-channel serial port expander caused by quality problems, finally swapped the brand better serial port expander will solve the problem.

In the system of the actual use made of such problems, a patrol routes to patrol officers will also trigger the routes alarm zone positives, last in the software will patrol line along the zone select the patrol of a certain range of time can be automatically bypass, a good solution to the problem.

Taking into account the larger the system, if you use regular room centralized power supply can not meet the requirements, the systems of power supply are basically concentrated for electricity, nearby is the power supply on the detector relative concentration of supply.

The system to use hardware linkage, and the linkage of the hardware device can be used only by DSR32 DS7400XI host itself driven, and not by the Security Center software control, and set the inconvenience.

Current DSR32 relay modules and alarm management software is available through the serial port communication compatible use, much easier to system integration.