CN206804120U

CN206804120U - A kind of accurate electronic scale device of intelligent portable

Info

Publication number: CN206804120U
Application number: CN201720357821.XU
Authority: CN
Inventors: 金飞宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-03-30
Filing date: 2017-03-30
Publication date: 2017-12-26
Anticipated expiration: 2027-03-30

Abstract

The utility model discloses a kind of accurate electronic scale device of intelligent portable, including pressure detection circuit, amplification and A/D change-over circuits, single-chip microcomputer, input through keyboard circuit, display circuit, overload-alarm circuit, power supply, electric capacity, resistance, amplifier chip sum core rod piece, the pressure detection circuit is connected with amplification and A/D change-over circuits by wire, and amplification and A/D change-over circuits are connected on single-chip microcomputer.The accurate electronic scale device of this intelligent portable, display circuit is made up of common cathode charactron and latch, for showing the information of object being measured, its function is enriched with input module by display, the article amount of money can accurately be calculated, the functions such as realization is removed the peel, the amount of money is cumulative, after weight exceedes limitation, alarm can also be carried out, realizing this electronic scale, low cost, portability, intellectuality, precision be high, practical five unification, greatly facilitates the progress of daily life and commercial activity.

Description

A kind of accurate electronic scale device of intelligent portable

Technical field

Intelligent electronic device applied technical field is the utility model is related to, specifically a kind of accurate electronics of intelligent portable Scale device.

Background technology

Currently, with the development of economy and society, people propose higher requirement to weighing technology, weighing device has turned into An indispensable part in life, but existing portable balance is the spring that metering is realized with the compression of spring, stretcher strain Scale, the manufacture craft of this spring scale require higher, and the fatigue problem of spring can not be solved thoroughly, so as to have influence on the accurate of scale Degree and reliability；And widely used electronic table scale in the market, although precision is high, good reliability, volume is big, cost Height, need power frequency AC, carry inconvenience, these all seriously govern the development of weighing instruments, and weighing apparatus is to carry out The important tool of trade in commodities activity, is unfavorable for the sustainable health development of economy, and people are high, sensitive there is an urgent need to a kind of precision The portable electronic scale spent.

Utility model content

The purpose of this utility model is to provide a kind of intelligent portable accurate electronic scale device, to solve above-mentioned background The problem of being proposed in technology.

To achieve the above object, the utility model provides following technical scheme：

A kind of accurate electronic scale device of intelligent portable, including pressure detection circuit, amplification and A/D change-over circuits, list Piece machine, input through keyboard circuit, display circuit, overload-alarm circuit, power supply, electric capacity, resistance, amplifier chip sum core rod piece, The pressure detection circuit is connected with amplification and A/D change-over circuits by wire, and amplification and A/D change-over circuits are connected to single-chip microcomputer On, connect keyboard input circuit, display circuit and overload-alarm circuit on the pin of single-chip microcomputer, pressure detection circuit, amplification and A/D change-over circuits and single-chip microcomputer provide electric energy by power supply；The power supply 7 is internally integrated power supply module circuit, electricity Source power supply module circuit is internally integrated LMI chips, and the input intervention 7.5V forward voltages of LMI chips, electric capacity is parallel with one another, And the input and output end of LMI chips are connected in series in, the output end of LMI chips intervenes reverse 5V voltages, and resistant series exist The output end of LMI chips, resistance and LED are in series, and the earth terminals of LMI chips is by wired earth；The pressure detecting Circuit is internally provided with variable resistor and Chip-R, is serially connected between variable resistor and Chip-R, pressure detecting electricity The input and output end on road are respectively connected to forward voltage and backward voltage；The inside of the amplification and A/D change-over circuits is set There are amplifier chip, A/D conversion chip sum core rod pieces, amplifier chip sum core rod piece passes through copper with A/D conversion chips Line connects；The inside of the overload-alarm circuit is provided with triode and alarm, the base series point of triode, colelctor electrode access Positive 5V voltages, the emitter stage of triode are connected with alarm, the other end ground connection of alarm；The input through keyboard circuit Internal connecting valve plate, microswitch is welded on switchboard, is connected in series between every four microswitches.

The display circuit is made up of common cathode charactron and latch.

The A/D conversion chips have been internally integrated including other similar cores such as voltage-stabilized power supply, on-chip clock oscillators Peripheral circuit required for piece.

The power supply passes through the technologies such as power filter, null offset suppression and linearized data processing.

The variable resistor and Chip-R use bridge-type attachment structure.

Compared with prior art, the utility model beneficial effect：

The accurate electronic scale device of this intelligent portable, display circuit are made up of common cathode charactron and latch, are used for The information of object being measured is shown, its function is enriched with input module by display, can accurately calculate the article amount of money, realization is gone The functions such as skin, the amount of money is cumulative, after weight exceedes limitation, can also carry out alarm, make this electronic scale realize low cost, Portability, intellectuality, precision are high, practical five unification, greatly facilitate daily life and commercial activity Progress；A/D conversion chips have been internally integrated including needed for other similar cake cores such as voltage-stabilized power supply, on-chip clock oscillator The peripheral circuit wanted, there is integrated level height, fast response time, strong interference immunity, reduce the complete machine cost of electronic scale, Improve the Performance And Reliability of complete machine；Power supply 7 passes through the skills such as power filter, null offset suppression and linearized data processing Art, further increase measurement accuracy；Variable resistor and Chip-R use bridge-type attachment structure, for the weight that will be collected Information is converted to electric signal transmission and gone out.

Brief description of the drawings

Fig. 1 is the general frame of the present utility model；

Fig. 2 is power supply module circuit diagram of the present utility model；

Fig. 3 is pressure detection circuit schematic diagram of the present utility model；

Fig. 4 is amplification of the present utility model and A/D change-over circuit schematic diagrames；

Fig. 5 is overload-alarm circuit diagram of the present utility model；

Fig. 6 is input through keyboard circuit diagram of the present utility model.

In figure：1- pressure detection circuits, 2- amplifications and A/D change-over circuits, 3- single-chip microcomputers, 4- input through keyboard circuit, 5- show Show circuit, 6- overload-alarms circuit, 7- power supplys, 8- electric capacity, 9-LMI chips, 10- resistance, 11-LED lamps, 12- variable resistors, 13- Chip-Rs, 14- amplifier chips, 15-A/D conversion chips, 16- digital-to-analogues chip, 17- triodes, 18- sirens, 19- Microswitch, 20- switchboards.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

As shown in figures 1 to 6, the accurate electronic scale device of a kind of intelligent portable of the utility model, including pressure detection circuit 1st, amplification and A/D change-over circuits 2, single-chip microcomputer 3, input through keyboard circuit 4, display circuit 5, overload-alarm circuit 6, power supply 7, electric capacity 8th, resistance 10, the sum core rod piece 16 of amplifier chip 14, pressure detection circuit 1 are connected with amplification and A/D change-over circuits 2 by wire Connect, amplification and A/D change-over circuits 2 are connected on single-chip microcomputer 3, and keyboard input circuit 4, display electricity are connected on the pin of single-chip microcomputer 3 Road 5 and overload-alarm circuit 6, display circuit 5 are made up of common cathode charactron and latch, for showing the letter of object being measured Breath, its function is enriched with input module by display, can accurately calculate the article amount of money, the work(such as realization is removed the peel, the amount of money is cumulative Can, weight exceed limitation after, alarm can also be carried out, make this electronic scale realize low cost, portability, intellectuality, Precision is high, practical five unification, greatly facilitates the progress of daily life and commercial activity；Pressure detecting Circuit 1, amplification and A/D change-over circuits 2 and single-chip microcomputer 3 provide electric energy by power supply 7；A/D conversion chips 15 are internally integrated Include the peripheral circuit required for the other similar cake cores such as voltage-stabilized power supply, on-chip clock oscillator, have that integrated level is high, rings The advantages that answering fast speed, strong interference immunity, the complete machine cost of electronic scale is reduced, improve the Performance And Reliability of complete machine；Electricity Source 7 is internally integrated power supply module circuit, and power supply module circuit is internally integrated LMI chips 9, LMI chips 9 it is defeated Enter end intervention 7.5V forward voltages, electric capacity 8 is parallel with one another, and is connected in series in the input and output end of LMI chips 9, LMI cores The output end of piece 9 intervenes reverse 5V voltages, and power supply 7 passes through the skills such as power filter, null offset suppression and linearized data processing Art, further increase measurement accuracy；Resistance 10 is connected on the output end of LMI chips 9, and resistance 10 and LED 11 are in series, The earth terminal of LMI chips 9 is by wired earth；Pressure detection circuit 1 is internally provided with variable resistor 12 and Chip-R 13, it is serially connected between variable resistor 12 and Chip-R 13, variable resistor 12 and Chip-R 13 use bridge-type attachment structure, Gone out for the weight information collected is converted into electric signal transmission；Input and the output end difference of pressure detection circuit 1 Access forward voltage and backward voltage；Amplification and A/D change-over circuits 2 are internally provided with amplifier chip 14, A/D conversion chips 15 sum core rod pieces 16, the sum core rod piece 16 of amplifier chip 14 are connected with A/D conversion chips 15 by copper cash；Overload-alarm The inside of circuit 6 is provided with triode 17 and alarm 18, the base series point 10 of triode 17, and colelctor electrode accesses positive 5V electricity Pressure, the emitter stage of triode 17 are connected with alarm 18, the other end ground connection of alarm 18, for exceeding the device when weight Cue is sent during the surveyed limit；The inside connecting valve plate 20 of input through keyboard circuit 4, microswitch is welded on switchboard 19 19, it is connected in series between every four microswitches 19, information is inputted for receiving.

It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation Involved claim.

Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art It is appreciated that other embodiment.

Claims

1. a kind of accurate electronic scale device of intelligent portable, including pressure detection circuit (1), amplification and A/D change-over circuits (2), single-chip microcomputer (3), input through keyboard circuit (4), display circuit (5), overload-alarm circuit (6), power supply (7), electric capacity (8), electricity Hinder (10), amplifier chip (14) sum core rod piece (16), it is characterised in that：The pressure detection circuit (1) and amplification and A/D Change-over circuit (2) is connected by wire, and amplification and A/D change-over circuits (2) are connected on single-chip microcomputer (3), the pin of single-chip microcomputer (3) Upper connection keyboard input circuit (4), display circuit (5) and overload-alarm circuit (6), pressure detection circuit (1), amplification and A/D Change-over circuit (2) and single-chip microcomputer (3) provide electric energy by power supply (7)；The power supply (7) is internally integrated power supply module Circuit, power supply module circuit are internally integrated LMI chips (9), and the input of LMI chips (9) intervenes 7.5V forward voltages, Electric capacity (8) is parallel with one another, and is connected in series in the input and output end of LMI chips (9), the output end intervention of LMI chips (9) Reverse 5V voltages, resistance (10) are connected on the output end of LMI chips (9), and resistance (10) and LED (11) are in series, LMI chips (9) earth terminal is by wired earth；The pressure detection circuit (1) is internally provided with variable resistor (12) and paster electricity Hinder (13), be serially connected between variable resistor (12) and Chip-R (13), the input and output end of pressure detection circuit (1) It is respectively connected to forward voltage and backward voltage；The amplification and A/D change-over circuits (2) are internally provided with amplifier chip (14), A/D conversion chips (15) sum core rod piece (16), amplifier chip (14) sum core rod piece (16) change core with A/D Piece (15) is connected by copper cash；The inside of the overload-alarm circuit (6) is provided with triode (17) and alarm (18), triode (17) base series point (10), colelctor electrode access positive 5V voltages, and the emitter stage of triode (17) is connected with alarm (18) Connect, the other end ground connection of alarm (18)；The inside connecting valve plate (20) of the input through keyboard circuit (4), switchboard (19) It is upper to weld microswitch (19), it is connected in series between every four microswitches (19).

A kind of 2. accurate electronic scale device of intelligent portable according to claim 1, it is characterised in that：The display electricity Road (5) is made up of common cathode charactron and latch.

A kind of 3. accurate electronic scale device of intelligent portable according to claim 1, it is characterised in that：The A/D turns That changes chip (15) has been internally integrated the periphery included required for other similar cake cores such as voltage-stabilized power supply, on-chip clock oscillator Circuit.

A kind of 4. accurate electronic scale device of intelligent portable according to claim 1, it is characterised in that：The power supply (7) technologies such as power filter, null offset suppression and linearized data processing are passed through.

A kind of 5. accurate electronic scale device of intelligent portable according to claim 1, it is characterised in that：It is described can power transformation Resistance (12) and Chip-R (13) use bridge-type attachment structure, go out for the weight information collected is converted into electric signal transmission Go.