The utility model content
In order to overcome above-mentioned deficiency, the purpose of this utility model provides a kind of safe and reliable, intelligent cashier's supervising device that monitoring effect is good.
To achieve these goals, the technical solution of the utility model is: comprise detecting device, latch, frequency-dividing counter, pulse oscillator, analog switch and controller, it is characterized in that: wherein detecting device eight tunnel is one group, at least one group, every circuit detector input end links to each other with automatic cashier's machine by sensor, output terminal is connected to latch, and and alarm, counter, electronic article surveillance tag demoder or demagnetizer link to each other, described latch output signal is parallel to the analog switch control end with the 1st frequency-dividing counter, the vision signal of analog switch output is a controller input signal, sound signal is connected to loudspeaker, described controller output signal through the pulse oscillator to the frequency-dividing counter control end;
Described detecting device is made up of receiver, transmitter, the 1st~6 triode, quadruple two input nand gates, photoisolator, relay and the 1st diode, wherein: described the 6th triode input end is connected to automatic cashier's machine by sensor, output terminal is through photoisolator and delay circuit to the 5 triode input ends, and the 5th triode outputs signal to the Sheffer stroke gate B of quadruple two input nand gates; Described emission sensor is located at the 4th transistor collector, and Sheffer stroke gate C, the D of described quadruple two input nand gates link to each other with the 4th transistor base as oscillatory circuit; The 1st transistor base is connected with receiver, the 2nd~3 triode that its output signal is extremely connected through Sheffer stroke gate A, B and the 1st diode of quadruple two input nand gates successively, the 3rd triode output terminal links to each other with alarm, counter, electronic article surveillance tag demoder or demagnetizer respectively through a switch of relay, and its 2nd switch links to each other with the latch input end; Add the 4th hand switch between described the 1st diode cathode and the 2nd triode input end; Add the 5th hand switch between the 2nd triode output terminal and the 3rd triode input end, in the resistance-capacitance circuit node place of parallel connection; Described latch has 8 road input ends, its signal comes the 2nd switch of self-detector repeat circuit respectively, it exports controllable silicon diode control end to, the controllable silicon diode is located between the 1st relay and the ground, the 1st switch is between latch and the 1st frequency-dividing counter in the 1st relay, the 2nd switch with connect the 1st frequency-dividing counter power supply after the 1st hand switch is connected; Between described latch and power supply, add reset switch;
Described analog switch is made up of 8 tunnel vision signal analog switches and 8 tunnel sound signal analog switches of parallel connection, wherein the control end of the 1st~8 tunnel vision signal analog switch is respectively from latch, the 1st switch of the vision signal of an output termination video camera, the vision signal of another output terminal video control switch and the 5th relay to the controller; The the 1st~8 tunnel sound signal analog switch control termination latch output terminal, its output is connected to loudspeaker on the one hand, is connected to the broadcasting talk back equipment on the other hand; Described controller is made up of the 7th~10 triode, the 2nd~5 relay, the 13rd diode, video control switch and the 2nd frequency-dividing counter, wherein: the 2nd frequency-dividing counter is connected with the 7th~9 triode input end respectively, the 7th~9 triode output terminal connects the 2nd~4 relay respectively, and the switch in parallel of the 2nd~4 relay is between pulse oscillator 6 and 7 ports; Described controller is video control switch, the 10th triode and the 5th relay by the structure that is connected in series also, the signal that is connected with the 1st~8 tunnel vision signal analog switch is an input signal, output signal is connected to Surveillance center's watch-dog or video recording equipment input end, the contact of the 1st switch is provided with non-cash register monitor video input end in described the 5th relay, and the 2nd switch links to each other with video recording equipment or alarm control input end in the 5th relay;
If keyswitch is between the 2nd frequency-dividing counter and power supply; If the 2nd hand switch is between the 2nd~4 relay and the 2nd frequency-dividing counter node and power supply; Described the 5th relay is established the 3rd hand switch between the 1st switching point position; Described receiver, transmitter walk abreast or are relatively arranged on the automatic cashier's machine platform; Described transmitter is infrared ray or laser sensor, and described sensor is sound, light or electric transducer.
The utlity model has following advantage:
1. adopt the utility model circuit structure simple, can reduce the input of watch-dog, wiring, save manpower, cost is low.
2. use the utility model can discern the feinting deception that the cashier is done with non-bar code end, stop Lou gathering phenomenon, safe and reliable.
3. adopt the utility model accuracy of judgement, record, evidence obtaining are in time; Rapid by broadcasting intercommunication processing and correction problem; And has a deterrent force.
Embodiment
Below in conjunction with drawings and Examples in detail the utility model is described in detail.
Embodiment 1
Shown in Fig. 1~3, the utility model comprises detecting device, latch, frequency-dividing counter, pulse oscillator, analog switch and controller, it is characterized in that: wherein detecting device eight tunnel is one group, at least one group, present embodiment is 1 group, every circuit detector input end links to each other with automatic cashier's machine by sensor, output terminal is connected to latch IC3, and and alarm, counter, electronic article surveillance tag demoder or demagnetizer link to each other, described latch IC3 output signal (every group 8 tunnel) is parallel to the analog switch control end with the 1st frequency-dividing counter IC4, the vision signal of analog switch output is a controller input signal, sound signal is connected to loudspeaker, described controller output signal through pulse oscillator IC5 from the 1st frequency-dividing counter IC4 control end;
Described detecting device is made up of receiver IC1, transmitter F, the 1st~6 triode V1~V6, quadruple two input nand gate IC2, photoisolator TB, relay J the 0, the 1st diode D1, the 1st~3 capacitor C 1~C3 and the 1st~13 resistance R 1~R13, wherein: described the 6th triode V6 base stage is an input end, be connected to hummer on the automatic cashier's machine platform by sensor, current collection is output terminal very, through photoisolator TB and delay circuit to the 5 triode V5 input ends, the 5th triode V5 collector outputs signal to the Sheffer stroke gate B of quadruple two input nand gate IC2; Described emission sensor F is located at the 4th triode V4 collector, and Sheffer stroke gate C, the D of described quadruple two input nand gate IC2 be as oscillatory circuit, through the 6th resistance R 6 and link to each other with the 4th triode V4 base stage; The 1st triode V1 base stage is connected with receiver IC1 through the 1st resistance R 1, the 2nd~3 triode V2~V3 that its collector is extremely connected through Sheffer stroke gate A, B and the 1st diode D1 of quadruple two input nand gate IC2 successively, the 3rd triode V3 output terminal links to each other with audible-visual annunciator, counter, electronic article surveillance device EAS tag decoder or demagnetizer respectively through a switch J0-1 of relay J 0, and its 2nd switch J0-2 links to each other with latch IC3 input end;
Add the 4th hand switch K4 between described the 1st diode D1 negative pole and the 2nd triode V2 input end, add the 5th hand switch K5 between the 2nd triode V2 output terminal and the 3rd triode V3 input end, in the resistance-capacitance circuit node place of parallel connection;
Described latch IC3 has 8 road input end CZ1~CZ8, its signal comes the 2nd switch J0-2 of self-detector repeat circuit J0 respectively, its output respectively through the 3rd~10 diode D3~D10 of parallel connection to controllable silicon diode SCR control end, controllable silicon diode SCR is located between the 1st relay J 1 and the ground, the 1st switch J1-1 is positioned between latch IC3 (11 pin) and the 1st frequency-dividing counter IC4 in the 1st relay J 1, the 2nd another switch J1-2 with connect the 1st frequency-dividing counter IC4 power supply after the 1st hand switch K1 connects; Described latch IC3 20 pin to power end, make latch IC3 automatically reset while the 1st frequency-dividing counter IC4 energising work of cutting off the power supply through reset switch SA1;
Described analog switch is made up of the 8 tunnel vision signal analog switch S1~S8 and the 8 tunnel sound signal analog switch S9~S16 of parallel connection, wherein the control end of the 1st~8 tunnel vision signal analog switch S1~S8 is respectively from latch IC3, the vision signal of an output termination video camera, on 2 of the contacts of the vision signal of another output terminal the 1st switch J5-1 of video control switch IC10 and the 5th relay J 5 to the controller, the the 1st~8 tunnel sound signal analog switch S9~S16 control termination latch IC3 output terminal, its output is connected to loudspeaker on the one hand, is connected to the broadcasting talk back equipment on the other hand;
Described controller input end is by the 7th~10 triode V7~V10, the 2nd~5 relay J 2~J5, the 16th~24 resistance R 16~R24, the 13rd diode D13, video control switch IC10 and the 2nd frequency-dividing counter IC11 form, wherein: the 2nd frequency-dividing counter IC11 is connected with the 7th~9 triode V7~V9 base stage respectively by the 16th~18 resistance R 16~R18, the 7th~9 triode V7~V9 collector meets the 2nd~4 relay J 2~J4 respectively, and the switch in parallel of the 2nd~4 relay J 2~J4 that is in series with the 20th~22 resistance R 20~R22 is between pulse oscillator IC56 and 7 ports; Described controller is video control switch IC10, the 10th triode V10 and the 5th relay J 5 by the structure that is connected in series also, the signal that is connected with the 1st~8 tunnel vision signal analog switch S1~S8 is an input signal, output signal is connected to Surveillance center's watch-dog or video recording equipment input end AV2,1 of the contact of the 1st switch J5-1 is provided with non-cash register monitor video input end AV1 in described the 5th relay J 5, and the 2nd switch J5-2 links to each other with video recording equipment or alarm control input end in the 5th relay J 5;
Other establishes keyswitch SA2 between the 2nd frequency-dividing counter IC11 and power supply; If the 2nd hand switch K2 is between the 2nd~4 relay J 2~J4 and the 2nd frequency-dividing counter IC11 node and power supply; Establish the 3rd hand switch K3 between 1,2 of described the 5th relay J 5 the 1st switch J5-1 contacts;
As shown in Figure 4, parallel automatic cashier's machine platform, the formation direct-injection type detection mode of being relatively arranged on of described receiver IC1, transmitter F; Concrete syndeton is: transmitter F places 1 li of expelling plate, receiver IC1 places 2 li of dash receivers, the commodity 4 of attached price bar code along the scanning traffic directions, on the cashier's machine scanning platform 3 automatically by the parallel expelling plate that is oppositely arranged 1, dash receiver 2 between the slit slide, direct-injection type scans the affirmation operation of typing; Wherein cashier's machine scanning platform 3 also is a handheld scan gun automatically;
Described transmitter F is an infrared sensor, and described sensor is Mike's sonic transducer;
The utility model circuit working process is:
The cashier operates when not having violation or cheating (placing 1 with the 4th~5 hand switch K4, K5 is example):
After the affirmation of commodity price barcode data by automatic cashier's machine scanning typing, the sensor place CZ0 interface of detecting device input end has signal output, the 6th triode V6 conducting, the 10th resistance R 10 and the 3rd capacitor C 3 constitute delay circuit and guarantee the 5th triode V5 conducting, the C of quadruple two input nand gate IC2, two Sheffer stroke gates of D constitute the 38KHZ oscillatory circuit, through the 4th triode V4 by transmitter F to infrared ray (or laser) sensor emission infrared ray or (laser), when commodity pass through detecting device, infrared ray (or laser) is obstructed, receiver IC1 exports noble potential, the 1st triode V1 conducting, make A by quadruple two input nand gate IC2, the trigger control circuit output high level that two Sheffer stroke gates of B constitute, the 2nd triode V2 conducting, the 3rd triode V3 ends, relay J 0 not adhesive, detecting device is normal, noiseless (or light) alarm indication, latch IC3 input end CZ1 to CZ8 port does not have high level, output terminal does not have high level yet and latchs output, pulse oscillator IC5 controls the 1st frequency-dividing counter IC4 output high level, divide and be clipped to the 4066 chip analog switches of forming by IC6~IC9, its vision signal analog switch S1~S8 and sound signal analog switch S9~S16 are closed simultaneously by the order that inserts high level, make latch IC3 patrol and examine 8 road cashier working site live telecasts by the video camera autoscan that analog switch connected.Control the 2nd~4 relay J 2 by the person on duty of Surveillance center by keyswitch SA2 in the controller as shown in Figure 3, J3, the adhesive of J4, at 6 of pulse oscillator IC5,7 pin insert the 20th~22 resistance R 20, R21, R22, make the pulse of the 3 pin output different duty of pulse oscillator IC5, frequency through its output high level circulation change of the 14 foot control systems of the 1st frequency-dividing counter IC4, make analog switch S1~S8 simultaneously, S9~S16 is break-make thereupon, 1 to 8 tunnel vision signals, loudspeaker audio signal automatically switches to as shown in Figure 3 video VIDEO with this change frequency, audio A UDIO port;
When the video control switch IC10 in the described controller is automatic control state, the 1st hand switch K1 disconnects, the 1st frequency-dividing counter IC4 outage, the output of no high level, the 3rd hand switch K3 places 2 of the 1st switch J5-1 of the 5th relay J 5, non-cash register monitor video input end AV1 places 1 by the 1st switch J5-1 of the 5th relay J 5, AV2 is connected with the video recording equipment input end, same monitor of other video camera dual-purpose or video recording equipment that 8 tunnel cash register rig cameras are connected with non-cash register monitor video input end AV1;
During manually-operated, the 1st hand switch K1 closure, the 3rd hand switch K3 places 1 of the 1st switch J5-1 of the 5th relay J 5, analog switch VIDEO port is connected with video recording equipment input end AV2 by non-cash register monitor video input end AV1, and the cash register rig camera uses a monitor or video recording equipment separately; The person on duty of Surveillance center can control the operation of broadcasting talk back equipment, supervising the cashier to work or correct a mistake by intercommunication switch SW in the broadcasting talk back equipment shown in Figure 31 simultaneously.
When the cashier operates violation or cheating (placing 1 with the 4th~5 hand switch K4, K5 is example):
The commodity price barcode data is failed by the affirmation of automatic cashier's machine scanning typing, the sensor place CZ0 interface no signal output of described detecting device input end, the 6th, 5 triode V6, V5 ends, when commodity pass through detecting device, receiver IC1 exports noble potential, the 1st triode V1 conducting, make the A of quadruple two input nand gate IC2, the trigger control circuit output low level that two Sheffer stroke gates of B constitute, the 2nd triode V2 ends, the 3rd triode V3 conducting, relay J 0 adhesive, the audible-visual annunciator of its switch J0-1 control, electronic article surveillance tag demoder or demagnetizer work (work of present embodiment control buzzer warning device), its switch J0-2 makes latch IC3 3 pin insert high level, the 3rd~10 diode D3 to D10 constitutes OR circuit simultaneously, the output high level, trigger controllable silicon diode SCR conducting, 1 adhesive of the 1st relay J, its the 1st switch J1-1 makes latch IC3 11 pin place high level, simultaneously, the 2nd switch J1-2 disconnects, the 1st frequency-dividing counter IC4 outage, no-output, latch IC3 exports 2 pin, analog switch S1, the S9 input end latchs high level, analog switch S1, the S9 closure, first via video camera, loudspeaker passes through VIDEO, AUDIO is linked into video control switch IC10 and broadcasting intercommunication input end in the controller;
When controlling automatically, the 1st hand switch K1 disconnects, the 1st frequency-dividing counter IC4 outage, the output of no high level, the 3rd hand switch K3 places 2 of the 1st switch J5-1 of the 5th relay J 5, the 1 tunnel vision signal S1 is through the 8th capacitor C 8 control IC10 6 pin output high level, the 10th triode V10 conducting, 5 adhesives of the 5th relay J, its the 1st switch J5-1 places 2, and the 1 tunnel cash register rig camera vision signal is connected by mould switch VIDEO port and video recording equipment input end AV2 monitor or video recording equipment input end; The 2nd switch J2-2 of the 2nd relay J 2 places 3 simultaneously, makes automatic video recording or alarm control port KZ closure, control automatic video recording or alarm work;
During the manual control operation, the 1st hand switch K1 closure, the 3rd hand switch K3 places 1 of the 1st switch J5-1 of the 5th relay J 5, analog switch VIDEO port is connected with video recording equipment input end AV2 by described the 1st switch J5-1, the cash register rig camera uses a monitor or video recording equipment separately, according to monitoring image, the broadcasting onsite alarming signal prompt that talk back equipment picked up, manually control is recorded a video by the person on duty of Surveillance center;
The person on duty of Surveillance center can control the operation of broadcasting talk back equipment, supervising the cashier to work and correct a mistake by keyswitch SW1 simultaneously.
But the utility model autoscan is patrolled and examined manual locking: disconnected as shown in Figure 3 by the person on duty of Surveillance center, the 2nd hand switch K2 key can be locked in a certain road in No. 8 video cameras VIDEO port output of analog switch.
Described latch IC3 adopts the 74LS273 chip, and the 1st, the 2nd frequency-dividing counter IC4, IC11 adopt 4017 chips, and pulse oscillator IC5 adopts 555 chips, and video control switch IC10 adopts the TS1821 chip, and quadruple two Sheffer stroke gate IC2 adopt 4011 chips.
Embodiment 2
Difference from Example 1 is: as shown in Figure 5, described receiver IC1, transmitter F are arranged at automatic cashier's machine platform for parallel, form reflective detection mode; On syndeton: transmitter F places 1 li one side of expelling plate, receiver IC1 places 2 li opposite sides of dash receiver, expelling plate 1 and dash receiver 2 parallel settings, the commodity 4 of attached price bar code scan traffic direction, slide above the parallel expelling plate 1 that is provided with, dash receiver 2 in automatic cashier's machine platform 3 upper edges, the reflective affirmation operation that scans typing;
Described transmitter F also is a laser sensor, and described sensor is photodiode or coil pickoff.