CN201435012Y

CN201435012Y - Intelligent water level controller

Info

Publication number: CN201435012Y
Application number: CN2009200644696U
Authority: CN
Inventors: 何竞
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-18
Filing date: 2009-05-18
Publication date: 2010-03-31
Anticipated expiration: 2019-05-18

Abstract

The utility model discloses an intelligent water level controller, which consists of a microprocessor, a memory chip, a CMOS comparator, a low water level detection probe, a high water level detectionprobe, a signal transmission electrode, a relay and an alarm. The input end of the relay is connected with the output end of the microprocessor, the input end of the alarm is connected with the output end of the microprocessor, the memory chip is connected with the microprocessor bi-directionally, the signal transmission electrode is connected with the output end of the microprocessor, the low water level detection probe and the high water level detection probe are respectively connected with the input end of the CMOS comparator, the output end of the CMOS comparator is connected with the input end of the microprocessor, and the output end of the relay is connected with a pump motor. The utility model has the function of protecting the pump motor when the water well is short of water or little water is in the water well, particularly preventing the motor from being damaged due to the dry burning. Moreover, the utility model has the advantages of simple structure and low operating failure rate.

Description

A kind of intelligent water level controller

Technical field

The utility model relates to a kind of water level controller, especially relates to a kind of intelligent water level controller.

Background technology

Existing water level controller is many to be made up of transistor or digital integrated circuit, does not have defencive function, and when well lack of water, few water, water power had both been wasted in the motor dry combustion method, may damage motor again; Some is provided with two water-level probe protective devices, and promptly cistern is provided with a cover water level detecting probe, and well is provided with another set of water level detecting probe; so both increase material cost, increased installation difficulty again, also made the controller circuitry complexity; increase the trouble spot, and stability reduces.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and provide a kind of and have lack of water, few water conservation function, and simple in structure, the intelligent water level controller that operation troubles is few.

The purpose of this utility model is achieved by the following technical programs: it is by microprocessor, memory chip, the CMOS comparer, the low-water level detection probe, the high water stage detection probe, the signal emitting electrode, relay, alarm constitutes, the relay input end is connected with output end of microprocessor, the alarm input end is connected with output end of microprocessor, memory chip is connected with microprocessor is two-way, the signal emitting electrode is connected with output end of microprocessor, the low-water level detection probe is connected with the CMOS comparator input terminal respectively with the high water stage detection probe, and the CMOS comparator output terminal is connected with the microprocessor input end; Relay output end links to each other with pump motor.

During use, low-water level detection probe and high water stage detection probe place the lower position and the higher position of cistern respectively, and the signal emitting electrode then places the position lower than the low-water level detection probe.

Described microprocessor sends detection signal by the signal emitting electrode, the signal that low-water level detection probe and high water stage detection probe are returned returns microprocessor after by the CMOS comparer, microprocessor judges, sending the signal instruction relay switches on or off the power circuit of pump motor, send signal simultaneously and give alarm, be stored in the memory chip working time that the first operation of microprocessor records, and the memory time that day-to-day operation need compare is also by obtaining in the memory chip.

Described microprocessor cycle ground sends detection signal by the signal emitting electrode, and the testing circuit by water level detecting probe and CMOS comparer feeds back then, when detecting low-water level, opens water pump, when water level rises to high water stage, switches off the pump again.

Described microprocessor detects low-water level by the low-water level detection probe, when opening water pump, also can pick up counting, after the default time period, sensed water level once more when also not surpassing low-water level, then is judged as the lack of water fault, send the power-circuit breaking of signal to relay immediately, switch off the pump pump motor; Also can instruct alarm to send alerting signal simultaneously, the lack of water failure message is informed the user.

During first the use, described microprocessor can be stored in this time used time from the low-water level to the high water stage in the memory chip.Afterwards, in case the water pump opening time surpasses the time of being remembered in the memory chip, microprocessor also detects less than high water stage, then is judged as the few water of well, can commands relays switch off the pump automatically subsequently; Also can instruct alarm to send alerting signal simultaneously, will lack water information notification user.

The utility model can be protected pump motor under various abnormal conditions, the water power that avoids waste is compared with the holding circuit mode of two water-level probes, and production cost, installation cost all further reduce, and the user saves worry laborsaving more.When having well lack of water, few water, protection pump motor function can avoid the motor dry combustion method to damage, and simple in structure, and operation troubles is few.

Description of drawings

Fig. 1 is the structured flowchart of the utility model one embodiment.

Fig. 2 is a workflow block diagram embodiment illustrated in fig. 1.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

With reference to Fig. 1, present embodiment is by microprocessor 1, memory chip 6, CMOS comparer 2, low-water level detection probe 4, high water stage detection probe 3, signal emitting electrode 5, relay 8, alarm 7 constitutes, the input end of relay 8 is connected with the output terminal of microprocessor 1, the input end of alarm 7 is connected with the output terminal of microprocessor 1, memory chip 6 and 1 two-way connection of microprocessor, signal emitting electrode 5 is connected with the output terminal of microprocessor 1, low-water level detection probe 4 is connected with the input end of CMOS comparer 2 respectively with high water stage detection probe 3, and the output terminal of CMOS comparer 2 is connected with the input end of microprocessor 1; The output terminal of relay 8 links to each other with pump motor 9.

During use, low-water level detection probe 4 and high water stage detection probe 3 place the lower position and the higher position of cistern 10 respectively, and 5 of signal emitting electrodes place the position lower than low-water level detection probe 4.

It is the cycle that microprocessor 1 was preset with 10 seconds, send a detection signal by signal emitting electrode 5, because the electric conductivity of water, detection signal can reach low-water level detection probe 4 or/and high water stage detection probe 3 by water, again by low-water level detection probe 4 or/and high water stage detection probe 3 is sent to COMS comparer 2, return microprocessor 1 by COMS comparer 2.If low-water level detection probe 4 no signals are returned, show that low-water level detection probe 4 is unsettled, water level does not reach low-water level detection probe 4 positions as yet, is judged as low-water level; High water stage detection probe 3 no signals are returned if low-water level detection probe 4 has signal to return, and show that the cistern water level has met or exceeded low-water level detection probe 4 positions, but do not reach high water stage detection probe 3 positions as yet, and it is normal to be judged as water level; If low-water level detection probe 4 and high water stage detection probe 3 all have signal to return, show that then the cistern water level has met or exceeded high water stage detection probe 3 positions, is judged as high water stage.

When cistern 10 water levels are in low-water level, microprocessor 1 meeting commands relays 8 is connected the power circuit of pump motors 9, starting water pump supplies water, cistern 10 water levels rise, and it is the cycle to send detection signal that microprocessor 1 still continued with 10 seconds, makes time keeping simultaneously, also there is signal to return until high water stage detection probe 3, when promptly detecting high water stage, 1 of microprocessor can commands relays 8 disconnects the power circuit of pump motors 9, switches off the pump.

During first the use, the time that microprocessor 1 can this time be spent from the low-water level to the high water stage is stored in (power failure does not disappear yet) in the memory chip 6; During daily use, microprocessor 1 is made comparisons water pump opening time and initial memory time automatically, surpasses as the opening time and does not also arrive high water stage memory time, is judged as few water, the power circuit of commands relays 8 automatic cutout pump motors 9 is in order to avoid pump motor 9 dry combustion methods damage; If unlatching water pump under the low-water level state still detects low-water level after 3 minutes, then be judged as the well water lack of water or other faults take place, microprocessor 1 commands relays 8 disconnects the power circuit of pump motor 9, switches off the pump; Also can instruct alarm 7 to send alerting signal simultaneously, lack of water or other failure messages (as water pump damage or water pipe breakage etc.) are informed the user, remind the user to handle.

Fig. 2 is the workflow block diagram of present embodiment.As shown in Figure 2, after step 100 water level controller brings into operation, execution in step 101, sensed water level if detect less than low-water level 102, shows that cistern need not moisturizing, so continue sensed water level; If the low-water level of detecting, then execution in step 103, pick up counting when opening water pump, and execution in step 104, continue sensed water level; If detect low-water level 105, then execution in step 106, judge that whether timing is above 3 minutes, as not surpassing 3 minutes, then return execution in step 104, continue sensed water level, if timing surpasses 3 minutes or low-water level, then be judged as lack of water or other faults take place, execution in step 107 switches off the pump and reports to the police simultaneously; If detect, show and work well that execution in step 108 begins reclocking from the moment of detecting less than low-water level, and execution in step 109, continues sensed water level less than low-water level; If detect less than high water stage 111, then execution in step 110, timing time and first memory time of using are compared, shorter as timing time than memory time, return execution in step 109, continue sensed water level, surpass memory time as timing time, also detect less than high water stage, be judged as few water, switch off the pump; If execution in step 109 detects high water stage 111, show that cistern water is full, also switches off the pump.

Claims

1, a kind of intelligent water level controller, it is characterized in that, by microprocessor, memory chip, the CMOS comparer, the low-water level detection probe, the high water stage detection probe, the signal emitting electrode, relay, alarm constitutes, the relay input end is connected with output end of microprocessor, the alarm input end is connected with output end of microprocessor, memory chip is connected with microprocessor is two-way, the signal emitting electrode is connected with output end of microprocessor, the low-water level detection probe is connected with the CMOS comparator input terminal respectively with the high water stage detection probe, and the CMOS comparator output terminal is connected with the microprocessor input end; Relay output end links to each other with pump motor.