CN104643937A

CN104643937A - Flow detection circuit of direct water dispenser

Info

Publication number: CN104643937A
Application number: CN201410758206.0A
Authority: CN
Inventors: 孙宗伟
Original assignee: Magnificent Soft Lighting Of Middle Electricity Luoyang Co Ltd
Current assignee: Magnificent Soft Lighting Of Middle Electricity Luoyang Co Ltd
Priority date: 2014-12-12
Filing date: 2014-12-12
Publication date: 2015-05-27

Abstract

The invention relates to the field of home direct water dispensers, particularly to a flow detection circuit of a direct water dispenser. The flow detection circuit comprises an alarm display interface terminal Display_P1, a single-chip microcomputer STC10F08XE, a power supply circuit, a crystal oscillation circuit, an EEPROM (Electrically Erasable Programmable Read-Only Memory) storage circuit and a water flow sensor interface P2 terminal. According to the flow detection circuit of the direct water dispenser, the actual use state of every filter element can be effectively detected so as to enable a user can timely replace the filter element which needs to be replaced.

Description

A kind of direct drinking fountain flow sensing circuit

[technical field]

The present invention relates to family expenses direct drinking fountain field, especially relating to a kind of for when applying direct drinking fountain, calculating the flow sensing circuit in filter core service life by detecting the discharge flowing through filter core.

[background technology]

Known, along with people are to the pay attention to day by day of health, tap water purifying equipment is popularized in the life of people, usually, in order to ensure filter effect, the filter plant of direct drinking fountain is just provided with an alarming value, when its flow reaches alarming value time when dispatching from the factory, direct drinking fountain just starts to report to the police, reminding user to replace filter core, but, what the filter core due to present most of family expenses direct drinking fountains adopted is all organize filter core more, and because of the difference of position, each road filter core life-span is in use not identical yet, therefore, existingly single alarming value is set cannot reminds accurately by organizing the filter plant that filter core forms existing more, also cannot prompting value when needing more renew cartridge be arranged accurately, namely when reality uses, if prompting value arranges too small, the filter core to not reaching service life will be caused to change, this just causes the waste of resource, if and the prompting value arranged is excessive, the service time of the filter core that the life-span can be caused again shorter exceeds its service life, thus have influence on the filter quality of direct drinking fountain, and then have influence on the healthy of people.

[summary of the invention]

In order to overcome the deficiency in background technology, the invention discloses a kind of direct drinking fountain flow sensing circuit, described circuit effectively can detect the real use state of per pass filter core respectively, and detection data are sent to other corresponding modular circuits timely, thus reach the filter core that people easy to use changes needs replacing in time, avoid the object having influence on filter quality.

For achieving the above object, the present invention adopts following technical scheme:

A kind of direct drinking fountain flow sensing circuit, described circuit comprises alarm indication Interface Terminal Display_P1, single-chip microcomputer STC10F08XE, power circuit, crystal oscillating circuit, EEPROM memory circuit and water flow sensor interface P2 terminal;

The described pin one of alarm indication Interface Terminal Display_P1 is connected with the pin one 8 of single-chip microcomputer STC10F08XE, pin two is connected with the pin one 9 of single-chip microcomputer STC10F08XE, pin 3 is connected with the pin two 0 of single-chip microcomputer STC10F08XE, pin 4 is connected with the pin two 1 of single-chip microcomputer STC10F08XE, pin 5 is connected with the pin two 2 of single-chip microcomputer STC10F08XE, pin 6 is connected with the pin two 3 of single-chip microcomputer STC10F08XE, pin 7 is connected with the pin two 4 of single-chip microcomputer STC10F08XE, pin 8 is connected with the pin two 5 of single-chip microcomputer STC10F08XE, pin 9 is connected with the pin 42 of single-chip microcomputer STC10F08XE, pin one 0 is connected with the pin 41 of single-chip microcomputer STC10F08XE, pin one 1 is connected with the pin 9 of single-chip microcomputer STC10F08XE, pin one 2 is connected with the GND of power circuit, pin one 3 is connected with the VCC of power circuit,

Described crystal oscillating circuit two ends are directly connected with the crystal oscillator interface pin 14 of single-chip microcomputer STC10F08XE and pin one 5; The pin 5 of described EEPROM memory circuit is connected with the pin one 2 of single-chip microcomputer STC10F08XE, pin 6 is connected with the pin one 3 of single-chip microcomputer STC10F08XE; Described water flow sensor interface P2 terminal pin one is connected with power circuit VCC, pin two is connected with power circuit GND, pin 3 is connected with the pin 8 of single-chip microcomputer STC10F08XE; The pin 38 of described single-chip microcomputer STC10F08XE is connected with the VCC of power circuit, pin one 6 is connected with GND, and all the other pins of single-chip microcomputer STC10F08XE are vacant.

Owing to adopting technical scheme as above, the present invention has following beneficial effect:

Direct drinking fountain flow sensing circuit signal transmission of the present invention is accurate, and response speed is very fast, is very suitable for family and uses; Described circuit effectively can detect the real use state of per pass filter core in direct drinking fountain respectively, namely calculates the service life of per pass filter core by detecting the water flow data flowing through per pass filter core, thus effectively prevent the waste of resource; In addition, the data detected can also be sent to other corresponding modular circuits by described circuit timely, thus people easy to use can change according to the using state of filter core the filter core needing to change timely, and the flow parameter of filter core is set accurately after replacing, and then reach the object of effective guarantee direct drinking fountain filter quality.

[accompanying drawing explanation]

Fig. 1 is described alarm indication Interface Terminal Display_P1 schematic diagram;

Fig. 2 is described single-chip microcomputer STC10F08XE schematic diagram;

Fig. 3 is described power circuit schematic diagram;

Fig. 4 is described crystal oscillating circuit schematic diagram;

Fig. 5 is described EEPROM memory circuit schematic diagram;

Fig. 6 is described water flow sensor interface P2 terminal schematic diagram.

[detailed description of the invention]

Can explain the present invention in more detail by the following examples, disclose object of the present invention and be intended to protect all changes and improvements in the scope of the invention, the present invention is not limited to the following examples:

A kind of direct drinking fountain flow sensing circuit by reference to the accompanying drawings described in 1 ~ 6, described circuit comprises alarm indication Interface Terminal Display_P1, single-chip microcomputer STC10F08XE, power circuit, crystal oscillating circuit, EEPROM memory circuit and water flow sensor interface P2 terminal;

The described pin one of alarm indication Interface Terminal Display_P1 is connected with the pin one 8 of single-chip microcomputer STC10F08XE, the pin two of alarm indication Interface Terminal Display_P1 is connected with the pin one 9 of single-chip microcomputer STC10F08XE, the pin 3 of alarm indication Interface Terminal Display_P1 is connected with the pin two 0 of single-chip microcomputer STC10F08XE, the pin 4 of alarm indication Interface Terminal Display_P1 is connected with the pin two 1 of single-chip microcomputer STC10F08XE, the pin 5 of alarm indication Interface Terminal Display_P1 is connected with the pin two 2 of single-chip microcomputer STC10F08XE, the pin 6 of alarm indication Interface Terminal Display_P1 is connected with the pin two 3 of single-chip microcomputer STC10F08XE, the pin 7 of alarm indication Interface Terminal Display_P1 is connected with the pin two 4 of single-chip microcomputer STC10F08XE, the pin 8 of alarm indication Interface Terminal Display_P1 is connected with the pin two 5 of single-chip microcomputer STC10F08XE, the pin 9 of alarm indication Interface Terminal Display_P1 is connected with the pin 42 of single-chip microcomputer STC10F08XE, the pin one 0 of alarm indication Interface Terminal Display_P1 is connected with the pin 41 of single-chip microcomputer STC10F08XE, the pin one 1 of alarm indication Interface Terminal Display_P1 is connected with the pin 9 of single-chip microcomputer STC10F08XE, the pin one 2 of alarm indication Interface Terminal Display_P1 is connected with the GND of power circuit, the pin one 3 of alarm indication Interface Terminal Display_P1 is connected with the VCC of power circuit,

Described crystal oscillating circuit two ends are directly connected with the crystal oscillator interface pin 14 of single-chip microcomputer STC10F08XE and pin one 5; The pin 5 of described EEPROM memory circuit is connected with the pin one 2 of single-chip microcomputer STC10F08XE, and the pin 6 of EEPROM memory circuit is connected with the pin one 3 of single-chip microcomputer STC10F08XE; The pin one of described water flow sensor interface P2 terminal is connected with power circuit VCC, the pin two of water flow sensor interface P2 terminal is connected with power circuit GND, and the pin 3 of water flow sensor interface P2 terminal is connected with the pin 8 of single-chip microcomputer STC10F08XE; The pin 38 of described single-chip microcomputer STC10F08XE is connected with the VCC of power circuit, and the pin one 6 of single-chip microcomputer STC10F08XE is connected with GND, and all the other pins of single-chip microcomputer STC10F08XE are vacant, do not do any connection;

In sum, single-chip microcomputer STC10F08XE, crystal oscillating circuit, power circuit constitutes the minimum system of single-chip microcomputer, wherein, EEPROM memory circuit is used for storing real-time water flow data, data on flows receives and is sent to single-chip microcomputer STC10F08XE to calculate by water flow sensor interface P2 terminal, and related data is saved in EEPROM memory circuit module, data and setting value then contrast by single-chip microcomputer STC10F08XE, thus draw alarming value, and then convert alarming value to corresponding LED alarm lamp signal respectively, be sent to pin one ~ 8 of alarm indication Interface Terminal Display_P1, simultaneously, buzzer warning signal is sent to the pin 9 of alarm indication Interface Terminal Display_P1, in addition, while having IR signal reception, processor interrupt routine goes to process infrared data, and is stored into by infrared data in EEPROM memory circuit module, completes interruption and proceeds above data processing.

Part not in the detailed description of the invention is prior art, therefore the present invention is not described in detail.

Claims

1. a direct drinking fountain flow sensing circuit, is characterized in that: described circuit comprises alarm indication Interface Terminal Display_P1, single-chip microcomputer STC10F08XE, power circuit, crystal oscillating circuit, EEPROM memory circuit and water flow sensor interface P2 terminal;