Background technique
In the purified water processing system, all be provided with apparatus for controlling pump usually, be used for monitoring the liquid level of purified water water storage tank, thereby the work of control suction pump remains in the setting range liquid level in the purified water water storage tank.Existing pump control system is wired control system, and its length of arrangement wire is long, and cost is high; Existing pump control system all adopts liquid level sensor to monitor liquid level, needs to cooperate analog to digital conversion circuit to work, and causes the whole system complex structure, has also increased the cost of whole system simultaneously; Existing pump control system all is to adopt self-built wired local area network to carry out data transmission, and network coverage area is limited, and operator can't understand the situation of system whenever and wherever possible, and the work of control system.
The model utility content
The purpose of the utility model promptly is to overcome the deficiency of existing technology, provides a kind of simple in structure, and cost is low, effectively the big purified water processing system pump control system of control range.
The purpose of the utility model realizes through following technological scheme:
Purified water processing system pump control system; It comprises the fluid level transmitter that is arranged in the purified water water storage tank; Fluid level transmitter is connected with central processing unit (CPU) through bus; Central processing unit (CPU) is connected with the GPRS communication module through communication line, and the GPRS communication module passes through public network and is connected with server, and the control circuit that central processing unit (CPU) passes through the suction pump in communication line and the purified water water storage tank is connected.
Bus is RS485 bus or CAN bus.
It also comprises the supply module that is connected with central processing unit (CPU).
Fluid level transmitter is the pressure type fluid level transmitter.
The advantage of the utility model is:
1. the employing fluid level transmitter does not need analog to digital conversion circuit to cooperate and just can directly export digital signal, has simplified the structure of whole system, has reduced cost;
2. adopt the wireless communication mode Data transmission, significantly reduced length of arrangement wire, cost is low;
3. adopt GPRS public network Data transmission, its network coverage area is big, and operator can understand the situation of system whenever and wherever possible, and the work of control system.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further, is not limited to the following stated in the protection domain of the utility model.
As shown in Figure 1; Purified water processing system pump control system, it comprises the fluid level transmitter that is arranged in the purified water water storage tank, fluid level transmitter is connected with central processing unit (CPU) through bus; Central processing unit (CPU) is connected with the GPRS communication module through communication line; The GPRS communication module is connected with server through public network, and the control circuit that central processing unit (CPU) passes through the suction pump in communication line and the purified water water storage tank is connected, and bus is RS485 bus or CAN bus.It also comprises the supply module that is connected with central processing unit (CPU).Fluid level transmitter is the pressure type fluid level transmitter.Supply module can be wind energy supply module, solar powered module or supplied by AC/DC electricity module.