Valve controlled sealed lead-acid battery (VRLA) with its seal, less maintenance, small self discharge, stable performance and other characteristics, are widely used in banks, the electric power industry and the communication industry etc.. The battery in use due to the floating state for a long time, easily in the plate will form a crystal, the discharge capacity of the battery of this phenomenon will cause great adverse effects, the only way to solve this problem is to implement a regular discharge effectively, through the discharge to make crystal falls off, thereby prolonging the service life of the battery, the process is called the activation treatment on the battery maintenance procedures at the same time, the battery has been written to power and communications industry.
The battery periodically activation treatment can significantly improve the battery reliability effectively, and can prolong the service life of 5-8 years or until the battery, battery life is generally not more than 3 years, so the user can save a lot of storage battery replacement costs.
The artificial activation treatment of time-consuming, laborious, cumbersome process operation difficulty is greater, in order to solve this problem to the activation effect effectively, we specialized in the original battery monitoring system is a new generation of monitoring system, between the main module and sub module adopts the wireless communication mode, thereby eliminating the need for many of the original simplified wiring, structure design of the acquisition of equipment, convenient field installation, maintenance. In the design process using a new type of device is stable and reliable, greatly reduce the cost of installation, saves the cost for customers. At the same time for each battery implemented on-line monitoring, can be found behind the battery which can be completely avoided due to backward a battery lead to premature aging of the whole group battery.
System principle
System through the wireless acquisition module collects and recorded the changes in the battery voltage, and ultimately by the computer system of collection and storage, the formation of record, can make the correct evaluation of battery state, to prevent the occurrence of fault. In a battery discharge process, monitoring, recording the voltage and current and temperature, discharge voltage, discharge current generation curve curve, and recording the environmental temperature, screening out the bad state of the battery.
System features
1 automatic activation of the battery, prolonging the service life of the battery, reduce the operating cost.
2 automatic acquisition of UPS power supply or battery charger state.
3 simple structure: each battery is connected with a monitoring unit, no mutual interference, stick out a mile.
4 convenient installation: each monitoring unit has two connecting line, line is easy to joint, does not need to install any tool can.
5 reliable operation: each monitoring unit independent of each other, the wireless protocol and the main unit communication, and do not influence each other improve reliability.
6 flexible: diversified design according to the function of use, can adapt to various different types of field application.
7 convenient maintenance: each unit independent operation, any unit failure, only need to replace the failed unit separately under the condition of no stop, does not affect the normal operation of other units.
8 powerful: NET3.0 platform for the development of new software system based on, can realize the user management, activation records, files, can adapt to a variety of specifications for battery battery and other functions.
9 receiving module can through the serial port or USB port and computer or host is connected through a data management.
10 the detection process, current or battery voltage is too low, both sound and light alarm.
Schematic diagram of system
Technical indicators
1: temperature measurement accuracy of ± 0.5 ℃
2 wireless battery voltage acquisition accuracy: 0.2%
3 insulation resistance: 500M ohm 1000V
The 4 dielectric strength: 1500VAC 50HZ
5 modes of communication: Ethernet, RS-232, RS-485
6 radio frequency: 400MHZ-464MHZ
7 wireless acquisition detection period: 10 times / sec
8 monitor unit power: ≤ 10mW
9 software operating system: Windows 95/98/2000/NT/XP/VISTA
10 temperature measurement range: -50 ℃ ~75 ℃
11 battery voltage acquisition using wireless data acquisition transmission mode, 2V/12V battery voltage acquisition compatible.
12 the voltage of the battery pack or a single battery voltage is lower than the set value, the discharge time, discharge capacity and can be set to automatic shutdown.
Process parameters, 13 showed the entire discharge curve, and auto save, power down without losing.
14 computer management software, parameters, curve can see at any time of the battery, and report generation.
Safety index
Safety index system conforms to the GB4793-84 standard.
The system is designed to give full consideration to the various situations and accidents on the system itself and the system of all kinds of equipment supporting the use of impact, using a variety of impact resistance and high fault tolerance method, detection equipment all uses high performance components, use the system with high safety performance. The monitoring system has the function of self checking, independent operation ability is very good, is not affected by the working condition of the user's system, also do not affect users of the system working state. Series battery monitoring system fully consider the characteristics of electromagnetic compatible in the circuit design and structure design, electromagnetic radiation is less than the national standard, has the shielding effect is very good, the system itself to the outside world without any electromagnetic interference.
The system adopts the modular design, the module independence is good, online maintenance and strong.
