CN205843801U - A kind of electronic weighting equipment - Google Patents
A kind of electronic weighting equipment Download PDFInfo
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- CN205843801U CN205843801U CN201620605779.4U CN201620605779U CN205843801U CN 205843801 U CN205843801 U CN 205843801U CN 201620605779 U CN201620605779 U CN 201620605779U CN 205843801 U CN205843801 U CN 205843801U
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Abstract
The utility model discloses a kind of electronic weighting equipment, solve electronic scale easily to be walked by lawless person's stealing, and the problem that staff cannot discover, its drip irrigation device is: for providing the base modules of reference value signal, providing the pressure detecting module of pressure detecting signal, the offer benchmark value signal pressure comparison module with pressure detecting signal size, for the alarm module of alarm；When pressure detecting signal is more than reference value signal, pressure comparison module controls alarm module to realize alarm, a kind of electronic weighting equipment of the present utility model, mobile phone etc. can be used to have the product of wireless communication function, the unit price of the product sold required for change, when needs use electronic scale, have only to the total price selecting corresponding unit price just can calculate product, compared with every time manually taking in unit price by button, improve settlement efficiency, reduce the waiting time of client, and when electronic scale is when being tampered, alarm can be sent, be used for reminding staff.
Description
Technical field
This utility model relates to a kind of projection electronic weighing weighing apparatus field, particularly to a kind of electronic weighting equipment.
Background technology
Electronic scale belongs to the one of weighing apparatus, utilizes the lever balance theory of Hooke's law or power to measure the work of mass of object
Tool.Electronic scale is mainly by load bearing system (such as the scale pan, scale body), power transmission converting system (such as lever transmission system, sensor) with show
Valve system (such as graduated disc, electronic display meter) three part forms.
In prior art, such as the Chinese patent of Publication No. CN202008397U, one has Bluetooth data transfer function
Electronic weighting equipment, including projection electronic weighing weighing apparatus and its induction installation of weighing, the induction installation of weighing of projection electronic weighing weighing apparatus sets
Having micro-control single-chip microcomputer, the Bluetooth receptions module bluetooth that the Bluetooth transmission module that micro-control single-chip microcomputer is provided with is installed with computer is connected,
The CPU of described computer and weighing data processing system connect, and described projection electronic weighing weighing apparatus is additionally provided with weighing apparatus weight display screen,
Weighing data processing module is configured with special process software.This utility model uses Bluetooth transfer techniques by projection electronic weighing weighing apparatus
Carry out bluetooth with the data handling system of computer to be connected, transfer the weighing data that micro-control single-chip microcomputer processes to digital data transmission
To computer weighing data processing system, then data are carried out by the weighing data processing system installed by computer CPU.
People, when not using electronic scale, are generally positioned on table top, when staff is not in a hurry busy
Waiting, electronic scale is still placed on table top, and when the most easily being walked by lawless person's stealing, staff cannot discover, also change
The space entered.
Utility model content
The purpose of this utility model is to provide a kind of electronic weighting equipment, it is ensured that electronic scale, when being tampered, can send
Alarm, is used for reminding staff.
Above-mentioned technical purpose of the present utility model has the technical scheme that
A kind of electronic weighting equipment, including electronic scale, also includes base modules, pressure detecting module, pressure comparison module
With alarm module；
Described base modules is used for providing reference value signal to comparison module；
Described pressure detecting module is for detecting produced pressure physical quantity general between the weight of electronic scale and desktop
Pressure physical quantity is converted to pressure detecting signal；
Described pressure ratio relatively module couples compares letter in pressure detecting module to receive pressure detecting signal output pressure
Number；
Described alarm module is coupled to pressure comparison module to receive pressure comparison signal and in response to pressure comparison signal
To realize alarm；
When pressure detecting signal is more than reference value signal, described pressure comparison module controls alarm module to realize accusing
Alert.
Using such scheme, when electronic scale is lifted, the force value that the detection of pressure detecting module obtains diminishes, now
The pressure detecting signal of pressure comparison module output high level, alarm module is led when receiving the pressure detecting signal of high level
Logical, send alarm, remind staff's electronic scale to be around stolen.
As preferably, described pressure detecting module includes force sensing resistance and divider resistance, one end of described force sensing resistance with
Power supply connects, and the other end of described force sensing resistance is connected with one end of divider resistance, and the other end of described divider resistance is with ground even
Connecing, the junction point between described force sensing resistance and divider resistance is to provide pressure detecting signal.
Using such scheme, force sensing resistance is a kind of particular components that mechanical force can be converted to the signal of telecommunication, force sensing resistance
Be that the piezoresistance effect utilizing semi-conducting material is made, i.e. resistance value changes with applied force size, passes through force sensing resistance
According to the difference of pressure size, also changing of the resistance of force sensing resistance, carry out dividing potential drop by divider resistance, thus obtain difference
Pressure detecting signal.
As preferably, described pressure comparison module is comparator.
Using such scheme, comparator can be with the size of benchmark value signal Yu pressure detecting signal, when reference value is believed
Number more than pressure detecting signal time, comparator output high level comparison signal；When pressure detecting signal is more than reference value signal
Time, the comparison signal of comparator output low level.
As preferably, described alarm module includes control unit and alarm unit；
Described control unit is coupled to pressure comparing unit to receive pressure comparison signal and to export control signal；
Described alarm unit is coupled to pressure control unit to receive control signal and in response to control signal to realize accusing
Alert.
Using such scheme, control unit is used for controlling whether alarm unit reports to the police, and alarm unit receives control
The control that unit sends, when electronic scale is lifted, will send alarm for reminding personnel and the staff of surrounding.
As preferably, described control unit has been also coupled to for receiving control signal right to realize in response to control signal
Control unit duty carries out the indicating member indicated.
Using such scheme, indicating member is used to refer to the working condition of control unit, when control unit receives high electricity
During flat comparison signal, indicating member will indicate, and when making electronic scale be removed, can send instruction at night, make work people
Member preferably finds electronic scale.
As preferably, described alarm unit includes warning control portion and warning portion；
Described warning control portion is coupled to control unit to receive control signal and to export alarm control signal；
Described warning portion couples with warning control portion to receive alarm control signal and in response to alarm control signal with reality
Now alert.
Using such scheme, warning control portion is used for controlling the startup in warning portion, when warning control portion receives control list
Unit control signal time, warning control portion output high level alarm control signal makes warning portion send alarm.
As preferably, described warning portion is electric bell.
Use such scheme, realize alarm by electric bell, can the prompting staff of maximum dynamics, and can be to not
Method molecule produces deterrence, affects the psychological diathesis of lawless person, makes lawless person strike fear into, thus helps staff to recover
Electronic scale.
As preferably, also include human detection module and trigger module；
Described human detection module is for detecting whether have people close and the physical quantity of the temperature of human body is converted to human body
Detection signal；
Described trigger module is coupled to human detection module to receive human detection signal and in response to human detection signal
To realize the current supply circuit of Guan Bi control unit.
Using such scheme, human detection module is for detecting human heat's signal, when having human body near people's health check-up
When surveying module, the human detection signal of human detection module inspection output high level, now the current supply circuit Guan Bi of control unit, control
Unit processed can normally work, when not having human body on limit, when electronic scale such as is dropped at the problem by object collision, and Bu Huifa
Go out alarm.
As preferably, also include the radio receiving transmitting module for transmitting signal；
Using such scheme, electronic scale in use, can be in advance by the unit price of the required product sold, by wireless receipts
Send out module will input to electronic scale, when needs use electronic scale, it is only necessary to select correct single-piece just can calculate and produce
The total price of product, easy to use, compared with every time manually taking in unit price by button, improve efficiency when selling product, reduce
The waiting time of client.
As preferably, described radio receiving transmitting module includes wireless transmitting unit and radio receiving unit；
Described wireless transmitting unit is used for exporting wireless transmission signal；
Described radio receiving unit is coupled to wireless transmitting unit to receive wireless transmission signal and to export wireless receiving and dispatching letter
Number to electronic scale.
Use such scheme, by wireless transmitting unit and radio receiving unit, the transmission of remote data can be reached,
And when using wireless transmitting unit and radio receiving unit, it is only necessary to ensure that wireless transmitting unit and radio receiving unit are in work
In the range of, it is possible to complete the transmission of data, practical.
In sum, this utility model has the advantages that
1, when electronic scale is taken away by people, audio alarm can be sent；
2, when electronic scale is taken away by people, light prompt is had, eye-catching in night, easily realized by people；
3, decrease non-artificial factor, make electronic scale drop, the false alarm situation of generation.
Accompanying drawing explanation
Fig. 1 is the structural representation of electronic weighting device；
Fig. 2 is the circuit theory diagrams of embodiment one；
Fig. 3 is the circuit theory diagrams of embodiment two.
In figure: 1, electronic scale；2, base modules；3, pressure detecting module；4, pressure comparison module；5, alarm module；6、
Control unit；7, alarm unit；8, indicating member；9, warning control portion；10, warning portion；11, human detection module；12, trigger
Module；13, radio receiving transmitting module；14, wireless transmitting unit；15, radio receiving unit.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
Embodiment one:
As shown in Figure 1-2, a kind of electronic weighting equipment disclosed in the present embodiment, including electronic scale 1, also include providing benchmark
The base modules 2 of value signal, pressure detecting module 3, pressure comparison module 4 and alarm module 5；Pressure detecting module 3 is used for examining
Survey the pressure physical quantity between electronic scale 1 and desktop and pressure physical quantity is converted to pressure detecting signal；Pressure comparison module 4
It is coupled to pressure detecting module 3 and compares signal to receive pressure detecting signal output pressure；Alarm module 5 is coupled to pressure ratio
Relatively module 4 is to receive pressure comparison signal and in response to pressure comparison signal to realize alarm；When pressure comparison module 4 reception
When pressure detecting signal is more than reference value signal, alarm module 5 is to realize alarm.Base modules 2 is by resistance R4 and resistance R5 group
Becoming, pressure detecting module 3 is made up of divider resistance R2 and force sensing resistance RV, and pressure comparing unit is by comparator N1 and resistance R1 group
Becoming, alarm module 5 includes control unit 6 and alarm unit 7, and alarm unit 7 includes warning control portion 9 and warning portion 10, controls
Unit 6 is made up of with relay K M1 audion Q1, and warning control portion 9 is audion Q2, and warning portion 10 is electric bell HA, and instruction is single
Unit 8 is LED.Radio receiving transmitting module 13 includes wireless transmitting unit 14 and radio receiving unit 15, wireless transmit
The wireless transmitting unit 14 that unit 14 can use model to be F05A, the nothing that radio receiving unit 15 can use model to be F04B
Line receives unit 15, and wireless transmitting unit 14 is connected by WIFI or data on flows with radio receiving unit 15.
As in figure 2 it is shown, one end of resistance R4 is connected with power supply VCC, the other end of resistance R4 is connected with one end of resistance R5,
The other end of resistance R5 is connected with ground GND.The central point of resistance R5 and resistance R6 is connected with one end of resistance R1, and resistance R1's is another
One end is connected with the input in the same direction of comparator N1, and the reverse input end of comparator N1 is connected with one end of divider resistance R2, point
The other end of piezoresistance R2 is connected with ground GND, and one end of force sensing resistance RV is connected with power supply VCC, the other end of force sensing resistance RV
It is connected with the junction point of divider resistance R2 with comparator N1.The outfan of comparator N1 is connected with the base stage of audion Q1, three poles
The emitting stage of pipe Q1 is connected with ground GND, and the colelctor electrode of audion Q1 is connected with one end of relay K M1, another of relay K M1
End is connected with the negative electrode of LED, and the anode of LED is connected with power supply VCC.Relay normally open contact
One end of KM1-1 is connected with power supply VCC, and the other end of relay normally open contact KM1-1 is connected with one end of resistance R3, resistance R3
The other end be connected with the base stage of audion Q2, the emitter stage of audion Q2 is connected with ground GND, and the colelctor electrode of audion Q2 is with electric
One end of tinkling of pieces of jade HA connects, and the other end of electric bell HA is connected with power supply VCC.
Work process: when electronic scale 1 is put on the table, the resistance value of force sensing resistance RV is relatively big, and comparator N1's is anti-
To the input in-phase input end more than comparator N1, the comparison signal of comparator N1 output low level, now audion Q1 is not
Conducting, LED does not works, and electric bell HA does not rings.When electronic scale 1 is lifted, the resistance value of force sensing resistance RV diminishes, this
Time, the reverse input end of the comparator N1 in-phase input end less than comparator N1, the comparison signal of comparator N1 output high level,
Now audion Q1 turns on, and LED is lighted, and relay K M1 obtains electric, and relay normally open contact KM1-1 closes, three poles
Pipe Q2 turns on, and electric bell HA sends sound.
Embodiment two:
It is with the difference of embodiment one, as it is shown on figure 3, add human detection module 11 and trigger module 12.
Human detection module 11 is made up of with field effect transistor V electric capacity C1, electric capacity C2, resistance R7.Trigger module 12 is by resistance R6, audion
Q3 forms with relay K M2.
As it is shown on figure 3, one end of resistance R4 is connected with power supply VCC, the other end of resistance R4 is connected with one end of resistance R5,
The other end of resistance R5 is connected with ground GND.The central point of resistance R5 and resistance R6 is connected with one end of resistance R1, and resistance R1's is another
One end is connected with the input in the same direction of comparator N1, and the reverse input end of comparator N1 is connected with one end of divider resistance R2, point
The other end of piezoresistance R2 is connected with ground GND, and one end of force sensing resistance RV is connected with power supply VCC, the other end of force sensing resistance RV
It is connected with the junction point of divider resistance R2 with comparator N1.The outfan of comparator N1 is connected with the base stage of audion Q1, three poles
The emitting stage of pipe Q1 is connected with ground GND, and the colelctor electrode of audion Q1 is connected with one end of relay K M1, another of relay K M1
End is connected with the negative electrode of LED, and the anode of LED is connected with power supply VCC.
As it is shown on figure 3, one end of relay normally open contact KM1-1 is connected with power supply VCC, relay normally open contact KM1-1
The other end be connected with one end of resistance R3, the other end of resistance R3 is connected with the base stage of audion Q2, the transmitting of audion Q2
Pole is connected with ground GND, and the colelctor electrode of audion Q2 is connected with one end of electricity tinkling of pieces of jade HA, and the other end of electric bell HA is connected with power supply VCC.
The anode of electric capacity C1 is connected with the anode of electric capacity C2, and the negative electrode of electric capacity C1 is connected with the G pole of field effect transistor V, the negative electrode of electric capacity C2
Is connected with one end of resistance R7 and ground GND respectively, the negative electrode of the other end of resistance R7 and electric capacity C1 and the G of field effect transistor V extremely in
Heart point connects, and the D pole of field effect transistor V is connected with power supply E, and the S pole of field effect transistor is connected with the base stage of audion Q3, audion Q3
Emitter stage be connected with one end of relay K M2, the other end of relay K M2 with ground GND is connected, the colelctor electrode of audion Q3 and
One end of resistance R6 connects, and the other end of resistance R6 is connected with power supply VCC.
Work process: when electronic scale 1 is put on the table, the resistance value of force sensing resistance RV is relatively big, and comparator N1's is anti-
To the input in-phase input end more than comparator N1, the comparison signal of comparator N1 output low level, now audion Q1 is not
Conducting, LED does not works, and electric bell HA does not rings.When people is away from electronic scale 1, audion Q3 is not turned on, relay normally open
Contact KM2-1 disconnects, and when now electronic scale 1 is lifted, the resistance value of force sensing resistance RV diminishes, and now, comparator N1's is reverse
The input in-phase input end less than comparator N1, the comparison signal of comparator N1 output high level, now audion Q1 is still
Being not turned on, LED does not works, and electric bell HA does not send sound.When people is near electronic scale 1, the S of field effect transistor V is the most defeated
Going out high level, audion Q3 turns on, and relay K M2 obtains electric, and relay normally open contact KM2-1 closes, and now electronic scale 1 is lifted
Time, the resistance value of force sensing resistance RV diminishes, the reverse input end of the comparator N1 in-phase input end less than comparator N1, comparator
The comparison signal of N1 output high level, audion Q1 turns on, and LED is lighted, and relay K M1 obtains electric, and relay is normal
Opening contact KM1-1 Guan Bi, audion Q2 turns on, and electric bell HA sends sound.
This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model
The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but
As long as all being protected by Patent Law in right of the present utility model.
Claims (10)
1. an electronic weighting equipment, including electronic scale (1), is characterized in that: also include base modules (2), pressure detecting module
(3), pressure comparison module (4) and alarm module (5)；
Described base modules (2) is used for providing reference value signal to comparison module (4)；
Described pressure detecting module (3) is used for detecting between weight and the desktop of electronic scale (1) produced pressure physical quantity also
Pressure physical quantity is converted to pressure detecting signal；
Described pressure comparison module (4) is coupled to pressure detecting module (3) and compares to receive pressure detecting signal output pressure
Signal；
Described alarm module (5) is coupled to pressure comparison module (4) to receive pressure comparison signal and relatively to believe in response to pressure ratio
Number with realize alarm；
When pressure detecting signal is more than reference value signal, described pressure comparison module (4) controls alarm module (5) to realize accusing
Alert.
A kind of electronic weighting equipment the most according to claim 1, is characterized in that: described pressure detecting module (3) includes power
Quick resistance and divider resistance, one end of described force sensing resistance is connected with power supply, the other end of described force sensing resistance and divider resistance
One end connect, the other end of described divider resistance is connected to ground, the junction point between described force sensing resistance and divider resistance with
Pressure detecting signal is provided.
A kind of electronic weighting equipment the most according to claim 1, is characterized in that: described pressure comparison module (4) is for comparing
Device.
A kind of electronic weighting equipment the most according to claim 1, is characterized in that: described alarm module (5) includes controlling list
Unit (6) and alarm unit (7)；
Described control unit (6) is coupled to pressure comparing unit to receive pressure comparison signal and to export control signal；
Described alarm unit (7) is coupled to pressure control unit (6) to receive control signal and in response to control signal to realize
Alarm.
A kind of electronic weighting equipment the most according to claim 4, is characterized in that: described control unit (6) is also coupled to useful
In receiving control signal the indicating member (8) with realization, control unit duty indicated in response to control signal.
A kind of electronic weighting equipment the most according to claim 5, is characterized in that: described alarm unit (7) includes control of reporting to the police
Portion processed (9) and warning portion (10)；
Described warning control portion (9) is coupled to control unit (6) to receive control signal and to export alarm control signal；
Described warning portion (10) couple with warning control portion (9) with receive alarm control signal and in response to alarm control signal with
Realize alarm.
A kind of electronic weighting equipment the most according to claim 6, is characterized in that: described warning portion (10) is electric bell.
A kind of electronic weighting equipment the most according to claim 4, is characterized in that: also includes human detection module (11) and touches
Send out module (12)；
Described human detection module (11) is for detecting whether have people close and the physical quantity of the temperature of human body is converted to human body
Detection signal；
Described trigger module (12) is coupled to human detection module (11) to receive human detection signal and in response to human detection
Signal is to realize the current supply circuit of Guan Bi control unit (6).
A kind of electronic weighting equipment the most according to claim 1, is characterized in that: also include the wireless receipts for transmitting signal
Send out module (13).
A kind of electronic weighting equipment the most according to claim 9, is characterized in that: described radio receiving transmitting module (13) includes
Wireless transmitting unit (14) and radio receiving unit (15)；
Described wireless transmitting unit (14) is used for exporting wireless transmission signal；
Described radio receiving unit (15) is coupled to wireless transmitting unit (14) to receive wireless transmission signal and to export wireless receipts
Signal to electronic scale (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620605779.4U CN205843801U (en) | 2016-06-16 | 2016-06-16 | A kind of electronic weighting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620605779.4U CN205843801U (en) | 2016-06-16 | 2016-06-16 | A kind of electronic weighting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205843801U true CN205843801U (en) | 2016-12-28 |
Family
ID=58152642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620605779.4U Active CN205843801U (en) | 2016-06-16 | 2016-06-16 | A kind of electronic weighting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205843801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896160A (en) * | 2020-07-23 | 2020-11-06 | 张忠良 | Scaffold support pressure detection system and application method thereof |
-
2016
- 2016-06-16 CN CN201620605779.4U patent/CN205843801U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896160A (en) * | 2020-07-23 | 2020-11-06 | 张忠良 | Scaffold support pressure detection system and application method thereof |
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