CN104977623A - Security inspection machine system and control method therefor - Google Patents
Security inspection machine system and control method therefor Download PDFInfo
- Publication number
- CN104977623A CN104977623A CN201410133302.6A CN201410133302A CN104977623A CN 104977623 A CN104977623 A CN 104977623A CN 201410133302 A CN201410133302 A CN 201410133302A CN 104977623 A CN104977623 A CN 104977623A
- Authority
- CN
- China
- Prior art keywords
- screening machine
- contact
- machine controller
- power
- contactor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Keying Circuit Devices (AREA)
Abstract
The invention provides a security inspection machine system and a control method therefor. The security inspection machine system comprises a security inspection machine controller, a power supply unit connected with the security inspection machine controller, a key switch connected with the security inspection machine controller and used for triggering the turning-on or turning-off of the security inspection machine controller, an upper computer display unit connected with the security inspection machine controller, a relay unit connected with a control chip, an AC contactor connected with the relay unit, and a two-phase AC power supply connected with the AC contactor. The power supply unit is supplied with power by the two-phase AC power supply. The security inspection machine controller is also connected with a thin film keyboard, a mechanical keyboard, and a system state indicating lamp. According to the invention, the integration of functions is realized; a security inspection machine circuit board is enabled to highly integrate various types of corresponding functional circuits; the improved structure is simple and the design cost is lowered; the power consumption is lowered and the service life is prolonged; and moreover, the invention also adopts various types of safety switch designs, thereby improving the safety and stability of the system.
Description
Technical field
Present patent application relates to screening machine, particularly relates to a kind of screening machine system and control method thereof.
Background technology
Along with enhancing and the needs of security of public safety consciousness, energy-conserving and environment-protective and intelligent operation have become safety check operating personnel to the eager demand of rays safety detection apparatus.Still there is certain problem in current screening machine, one is that functional circuit integrated level is lower and cause power consumption cost high; Moreover; less stable; usually have power down or other defect generation in actual use; extremely bother; especially in the time period that flow of the people is larger; this problem easily causes various social contradications and social safety problem, the conflict that the railway station often occurred as current, subway station or airport occur and terrorist activity.
Summary of the invention
The shortcoming of prior art in view of the above, the object of present patent application is to provide a kind of screening machine system and control method thereof, solves above-mentioned various screening machine defect problem of the prior art.
For realizing above-mentioned target and other related objectives, present patent application provides a kind of screening machine system, comprising: screening machine controller, connect described screening machine controller power supply unit, connect described screening machine controller for trigger described screening machine controller energising or power-off key switch, connect described screening machine controller host computer display unit, connect described control chip relay unit, connect the A.C. contactor of described relay unit and connect the two-phase alternating current source of described A.C. contactor; Wherein, described power supply unit is powered by described two-phase alternating current source; Described screening machine controller is also connected with membrane keyboard, mechanical keyboard and system state indicator.
Preferably, described power supply unit comprises the voltage changing module connecting described two-phase alternating current source, between the live wire end that described voltage changing module is connected in parallel on described two-phase alternating current source and zero line side, described voltage changing module comprises positive pole and negative pole for being electrically connected to described screening machine controller; Described relay unit comprises solid-state relay, the output terminal of described solid-state relay is connected to described screening machine controller, described solid-state relay comprises first input end and the second input end, and described live wire end is connected to the first input end of described solid-state relay by the first rectification circuit and the first air switch; Described A.C. contactor comprises at least 3 pairs of main contacts, and the first contact and second contact of wherein said A.C. contactor form the first contact, and the 3rd contact and the 4th contact form the second contact, and the 5th contact and the 6th contact form the 3rd contact; Second input end of described solid-state relay is connected to the first contact of described A.C. contactor, the solenoid of the restarting switch that described second contact process is parallel between described first contact and the second contact and described A.C. contactor is connected to the 5th contact of described A.C. contactor, is parallel with at least two system state indicators between described 4th contact and described 6th contact; Described 5th contact is connected to described zero line side to form power circuit through the second air switch and the second rectification circuit.
Preferably, the described power supply unit of the closed triggering of described key switch is energized to described screening machine controller, and triggering first input end and the second input end short circuit of described solid-state relay, described restarting switch is closed to be communicated with to trigger to be communicated with and to trigger between described 5th contact with the 6th contact between described 3rd contact with the 4th contact to power on to trigger described solenoid self-locking adhesive to described A.C. contactor; Screening machine controller power-off described in described key switch break trigger, and trigger the first input end of described solid-state relay and the second input end separated to make described A.C. contactor dead electricity to disconnect described 3rd contact and the 4th contact and to disconnect described 5th contact and the 6th contact, to make described screening machine system cut-off.
Preferably, described screening machine controller is integrated with and is connected to described key switch and the delay circuit being connected to described host computer display unit; Described delay circuit in order to according to the testing result whether powered on to described host computer display unit with screening machine controller power-off described in trigger delay.
Preferably, the time delay of described delay circuit is 20 ~ 40 seconds.
Preferably, the system radiating fan of system state indicator described in quantity one_to_one corresponding is also at least parallel with between described 4th contact and the 6th contact.
Preferably, same air switching device is located at by described first air switch and the second air switch, described air switching device has at least 4 pins, wherein, form described first air switch between the first pin and the second pin, between described 3rd pin and the 4th pin, form described second air switch.
Preferably, screening machine controller is integrated with faults-tolerant control instruction database.
Preferably, described host computer display unit comprises the display screen of host computer.
For realizing above-mentioned target and other related objectives, present patent application provides a kind of screening machine system control method, be applied to foregoing screening machine system, described screening machine system control method comprises: by screening machine controller power-off described in described key switch break trigger; Detect described host computer display unit whether to power on; If power on, then make described screening machine system cut-off after postponing Preset Time; If do not power on, then do not carry out time delay.
As mentioned above, a kind of screening machine system of present patent application and control method thereof, wherein, described screening machine system comprises: screening machine controller, connect described screening machine controller power supply unit, connect described screening machine controller for trigger described screening machine controller energising or power-off key switch, connect described screening machine controller host computer display unit, connect described control chip relay unit, connect the A.C. contactor of described relay unit and connect the two-phase alternating current source of described A.C. contactor; Wherein, described power supply unit is powered by described two-phase alternating current source; Described screening machine controller is also connected with membrane keyboard, mechanical keyboard and system state indicator; Thus practical function set, make screening machine circuit board can the functional circuit of highly integrated various correspondence, the structure improved is simple, reduce design cost, reduce power consumption, increase the service life, intelligent and high-efficiency, and the application also can apply multiple safety switch design with the security and stability of elevator system.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation of an embodiment of the screening machine system of present patent application.
Fig. 2 is shown as the structural representation of an embodiment of the screening machine system of present patent application.
Fig. 3 is shown as the schematic flow sheet of an embodiment of the screening machine system control method of present patent application.
Element numbers explanation
1 screening machine system
10 screening machine controllers
11 power supply units
12 key switches
13 host computer display units
14 relay units
15 A.C. contactors
16 two-phase alternating current sources
17 membrane keyboards
18 mechanical keyboards
19 system state indicators
S1 ~ S4 process step
Embodiment
The embodiment of present patent application is described below by way of specific instantiation, and those skilled in the art the content disclosed by this instructions can understand other advantages and effect of present patent application easily.Present patent application can also be implemented by embodiments different in addition or be applied, and the every details in this instructions also based on different viewpoints and application, can carry out various modification or change under the spirit not deviating from present patent application.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Refer to Fig. 1, present patent application provides a kind of screening machine system 1, comprising: screening machine controller 10, connect described screening machine controller 10 power supply unit 11, connect described screening machine controller 10 for trigger described screening machine controller 10 be energized or power-off key switch 12, connect described screening machine controller 10 host computer display unit 13, connect described control chip relay unit 14, connect the A.C. contactor 15 of described relay unit 14 and connect the two-phase alternating current source 16 of described A.C. contactor 15; Wherein, described power supply unit 11 is powered by described two-phase alternating current source 16; Described screening machine controller 10 is also connected with membrane keyboard 17, mechanical keyboard 18 and system state indicator 19.
In the present embodiment, described screening machine controller 10 can comprise MCU, namely MCU (Micro Control Unit) Chinese is micro-control unit, also known as one chip microcomputer (Single Chip Microcomputer) or single-chip microcomputer, refer to the appearance along with large scale integrated circuit and development thereof, by the CPU of computing machine, RAM, ROM, timer conter and multiple I/O Interface integration on one chip, form the computing machine of chip-scale, do various combination for different application scenarios and control.
MCU can be divided into without two kinds, ROM type in ROM type in sheet and strap by its type of memory.For the chip without ROM type in sheet, must could apply (typical chip is 8031) by external EPROM.In strap, the chip of ROM type is divided into again the type such as mask rom type (typical chip is 8051), in-chip FLASH type (typical chip is 89C51) in EPROM type in sheet (typical chip is 87C51), MASK sheet, some companies also release the chip (typical chip is 97C51) with one time programming ROM in sheet (OneTime Programming, OTP).The MCU low price of MASKROM, but program has cured when dispatching from the factory, and is applicable to the changeless application scenario of program; The MCU program of FLASHROM can be repeatedly erasable, and dirigibility is very strong, but price is higher, is applicable to the insensitive application scenario of price or does exploitation purposes; The MCU price of OTPROM, between the above two, simultaneously has again One Time Programmable ability, is applicable to both having required that natural was active, requires again the application scenario of low cost, and especially function constantly updates, needs the electronic product of rapid volume production.Microcontroller is constantly being studied through this for several years, and development, goes through 4,8, till now 16 and 32, even 64.The degree of ripeness of product, and drop into more than manufacturer, range of application is wide, is really unprecedented.Due to the improvement of processing procedure, 8 MCU and 4 MCU price differentials are not very different from, and 8 gradually become the market mainstream; Current 4 MCU most applications are at counter, auto meter, anti-theft device for vehicle, calling set, wireless telephone, CD Player, LCD driving governor, LCD game machine, toy for children, platform scale, charger, tire gauge, Hygrothermograph, telepilot and idiot camera etc.; 8 MCU most applications are at ammeter, motor controller, electronic toy machine, frequency conversion type air conditioner, calling set, facsimile recorder, incoming call identifier (CallerID), telescribe, CRT monitor, keyboard and USB etc.; 16 MCU most applications phone, digital camera and shoot with video-corder projector etc. in action; 32 MCU most applications are at Modem, GPS, PDA, HPC, STB, Hub, Bridge, Router, workstation, ISDN phone, laser printer and colour facsimile apparatus; 64 MCU most applications are at high-order workstation, multimedia interactive system, advanced television Game device (GameBoy as Dreamcast and Nintendo of SEGA) and premium terminals machine etc.
MCU chip and peripheral circuit are applied in screening machine, the work functions of most of screening machine can be completed, also can meet the requirement of low cost, there is higher cost performance.
And described power supply unit 11, transformer can be comprised, for the described two-phase alternating current source 16 i.e. two-phase civil power of such as 220V being converted into the DC voltage that applicable described screening machine controller 10 uses, such as 5V, 3.3V or 12V etc. can be that isolating transformer (isolating transformer such as with separator) or non-isolated transformer etc. all can.
Described host computer display unit 13, wherein host computer can be computer, panel computer, notebook computer or similar terminal device and, described host computer display unit 13 then comprises the displays such as LED, LCD and relevant picture signal transmission process circuit, such as filtering, rectification and amplifying circuit etc., due to display comprise for and display image-forming principle and Graphics Processing mode and circuit be common, therefore do not repeated.
In the present embodiment, described relay is solid-state relay (Solid State Relay, abbreviation SSR), is by microelectronic circuit, discrete electron device, the noncontacting switch of power electronic power device composition.The isolation of control end and load end is achieved with isolating device.The small control signal of input end of solid-state relay, reaches Direct driver large current load.The special solid-state relay of solid-state relay can have short-circuit protection, overload protection and overheat protective function, just can realize the intelligent object that user needs, be directly used in control system with combinational logic cure package.Solid-state relay has been widely used in computer external interfacing equipment, constant temperature system, temperature adjustment, electric furnace add temperature control, Electric Machine Control, numerical controlled machinery, telechirics, industrial automation arrangement; Signal lamp, light modulation, scintillater, illumination stage light control system; Instrument and meter, medicine equipment, duplicating machine, automatic washing machine; Automatic fire control, security system, and the change-over switch etc. of the electric capacitor compensated as grid power factor, have a large amount of use in addition in chemical industry, colliery etc. need explosion-proof, moistureproof, anticorrosion occasion.
In the present embodiment, solid-state relay is made up of three parts: input circuit, isolation (coupling) and output circuit.
Wherein, input circuit; Different classes of by input voltage, input circuit can be divided into direct-flow input circuit, ac input circuit and alternating current-direct current input circuit three kinds.Some input control circuit also have and TTL/CMOS compatible, mixed logic controls and the function such as anti-phase, can easily with TTL, mos logic circuit connection.For the control signal that control voltage is fixing, adopt resistive input circuit.Control electric current to ensure be greater than 5mA.Control signal (as 3 ~ 32V) for large variation range then adopts constant-current circuit, ensures that electric current is being greater than 5mA reliably working in whole voltage change range.
Wherein, buffer circuit; The isolation of the constrained input circuit of solid-state relay and coupling scheme have photoelectric coupling and transformer coupled two kinds: photoelectric coupling uses photodiode-phototriode usually, photodiode-bidirectional light controlled controllable silicon, photovoltaic cell, realizes controlling side and load-side isolated controlling; High-frequency transformer coupling is that the excitation high frequency signal utilizing the control signal of input to produce is secondary through being coupled to, and through detection rectification, logical circuit process forms drive singal.
Wherein, output circuit; The power switch of SSR directly accesses power supply and load end, realizes switching the break-make of load power source.Main use has High-power Semiconductor Triode (switching tube-Transistor), one-way SCR (Thyristor or SCR), bidirectional triode thyristor (Triac), power field effect pipe (MOSFET), insulated gate bipolar transistor (IGBT).The output circuit of solid-state relay also can be divided into DC output circuit, exchanges the form such as output circuit and alternating current-direct current output circuit.By loadtype, DC solid-state relay and ac solid relay can be divided into.Direct current can use bipolar devices or power field effect pipe when exporting, and exchanges when exporting and usually uses two controllable silicons or a bidirectional triode thyristor.And ac solid relay can be divided into single-phase AC solid-state relay and 3 phase AC solid relay.Ac solid relay, by the opportunity of conducting and shutoff, can be divided into stochastic pattern ac solid relay and zero type ac solid relay.
The present invention uses solid-state relay, thus is lifted at safe examination system stability in use, and promotes its serviceable life, hereinafter can be described in detail the use of the application's repeat circuit unit 14.
In the present embodiment, described A.C. contactor 15, primarily of compositions such as electromagnetic mechanism, contact system and arc-control devices, when A.C. contactor 15 solenoid no power, the reacting force of spring and the deadweight of armature core make main contacts remain open position; When solenoid connects control voltage (being generally rated voltage) by control loop, armature is inhaled to fixed core by the reacting force that electromagnetic force overcomes spring, and drive main contacts to close, connect circuit, auxiliary contact is action thereupon.
One of innovative point of the present invention is that described screening machine controller 10 is also connected with membrane keyboard 17, mechanical keyboard 18 and system state indicator 19.In the present embodiment, described membrane keyboard 17 is examples for thin film switch category, and the thin film switch that button is more and neat and orderly, membrane keyboard 17 is that a kind of of international popular in recent years integrates ornamental with a functional operating system.Be made up of panel, upper circuit, separation layer, lower circuit four part.Membrane keyboard 17 good looking appearance, novelty, volume is little, lightweight, and sealing is strong.There is moistureproof, dust-proof, the feature such as oil-stain-preventing, acid and alkali-resistance, antidetonation and long service life.Be widely used in intelligent electronic surveying instrument, Medical Instruments, computing machine controls, digital lathe, electronic scale, post and telecommunications, duplicating machine, refrigerator, micro-wave oven, electric fan, washing machine, the fields such as electronic game machine; The i.e. usual keyboard of described mechanical keyboard 18, such as, for inputting the code keypad of password, or external USB keyboard or serial ports keyboard etc.; And described system state indicator 19 can be one or more, be used to indicate the state of screening machine, whether such as system powers on is transported shape, detect thing and whether have problem, or operation conditions of system radiating fan etc., if system state indicator 19 is one, then can there be plurality of display modes or display color, to meet above-mentioned requirements.
Human-computer intellectualization system is constituted between described screening machine controller 10 of the present invention, host computer display unit 13, membrane keyboard 17, mechanical keyboard 18 and system state indicator 19, and screening machine controller 10, connect the power supply unit 11 of described screening machine controller 10, connect being energized or the key switch 12 of power-off for triggering described screening machine controller 10 of described screening machine controller 10, connect the host computer display unit 13 of described screening machine controller 10, connect the relay unit 14 of described control chip, connect the A.C. contactor 15 of described relay unit 14, and constitute screening machine switching system between the two-phase alternating current source 16 connecting described A.C. contactor 15.
That is, both are combined into one by the present invention, share and use described screening machine controller 10, power supply unit 11 and host computer display unit 13; Therefore the various interface be connected with above-mentioned parts or functional module can be integrated on same circuit board when the design of surface-mounted integrated circuit, thus improve functional integration.
As shown in Figure 2, in order to the on-off principle of screening machine system 1 of the present invention to be described, as shown in the figure, in the present embodiment, described power supply unit 11 comprises the voltage changing module (namely X1) as shown in the figure connecting described two-phase alternating current source 16, 5V DC-voltage supply is provided in the present embodiment, certainly this determines by actual conditions, not be limited with the present embodiment, described voltage changing module is connected in parallel between the live wire end (i.e. illustrated 220V-L) in described two-phase alternating current source 16 and zero line side (i.e. illustrated 220V-N), described voltage changing module comprises positive pole (namely illustrating 5V+) and negative pole (namely illustrating 5V-) for being electrically connected to described screening machine controller 10, described relay unit 14 comprises solid-state relay (namely illustrating SSR module), the output terminal of described solid-state relay (i.e. 3 pin of illustrated SSR module and 4 pin) is connected to described screening machine controller 10, described solid-state relay comprises first input end and the second input end (i.e. 1 pin of illustrated SSR module and 2 pin), and described live wire end is connected to the first input end of described solid-state relay by the first rectification circuit (namely illustrating FU1) and the first air switch, described A.C. contactor 15 (i.e. illustrated KM1) comprises at least 3 pairs of main contacts, first contact of wherein said A.C. contactor 15 (i.e. 1 pin of KM1 as shown in Figure 2) and the second contact (i.e. 2 pin of KM1 as shown in Figure 2) form the first contact, 3rd contact (i.e. 3 pin of KM1 as shown in Figure 2) and the 4th contact (i.e. 4 pin of KM1 as shown in Figure 2) form the second contact, and the 5th contact (i.e. 5 pin of KM1 as shown in Figure 2) and the 6th contact (i.e. 6 pin of KM1 as shown in Figure 2) form the 3rd contact, second input end of described solid-state relay is connected to the first contact of described A.C. contactor 15, the solenoid of the restarting switch (namely illustrating SP) that described second contact process is parallel between described first contact and the second contact and described A.C. contactor 15 is connected to the 5th contact of described A.C. contactor 15, is parallel with at least two system state indicators 19 (namely illustrating HY1 and HY2) between described 4th contact and described 6th contact, described 5th contact is connected to described zero line side to form power circuit through the second air switch and the second rectification circuit (namely illustrating FU2).
The described power supply unit 11 of the closed triggering of described key switch 12 is energized to described screening machine controller 10, and triggering first input end and the second input end short circuit of described solid-state relay, described restarting switch is closed to be communicated with to trigger to be communicated with and to trigger between described 5th contact with the 6th contact between described 3rd contact with the 4th contact to power on to trigger described solenoid self-locking adhesive to described A.C. contactor 15; Screening machine controller 10 power-off described in described key switch 12 break trigger, and trigger the first input end of described solid-state relay and the second input end separated to make described A.C. contactor 15 dead electricity to disconnect described 3rd contact and the 4th contact and to disconnect described 5th contact and the 6th contact, to make the power-off of described screening machine system 1.
Described screening machine controller 10 is integrated with and is connected to described key switch 12 and the delay circuit being connected to described host computer display unit 13, described delay circuit in order to according to the testing result whether powered on to described host computer display unit 13 with screening machine controller 10 power-off described in trigger delay, preferably, the time delay of described delay circuit is 20 ~ 40 seconds, preferred further, described time delay is 30 seconds, time delay 20 ~ 40 seconds preferably screening machine system 1 described in power-off after 30 seconds, to avoid causing the host computer display unit 13 in screening machine system 1 also not have enough time to stop image procossing display namely by direct power down owing to firmly shutting down, thus it is impaired and cause screening machine system 1 fault, thus the social contradications described in the prior art caused or social safety problem.
Preferably, the system radiating fan of system state indicator 19 described in quantity one_to_one corresponding is also at least parallel with between described 4th contact and the 6th contact, that is, described system radiating fan can be connected in parallel on the two ends of described system state indicator 19, can be used for by system state indicator 19 ruuning situation understanding described system radiating fan.
In addition, preferably, in the present embodiment, described air switch, has another name called air-break, is the one of isolating switch.As long as be that in a kind of circuit, electric current exceedes the switch that rated current will disconnect automatically.Air switch is very important a kind of electrical equipment in low voltage power distribution network and electric drive system, and it integrates control and multi-protective function.Decapacitation completes outside contact and point deenergizing, and the short circuit that still can occur circuit or electrical equipment, heavy overload and under-voltage etc. are protected, and also may be used for infrequently actuating motor simultaneously; Preferably, same air switching device (namely QF) is as shown in the figure located at by described first air switch and the second air switch, described air switching device has at least 4 pins, wherein, namely first pin (i.e. 1 pin of QF as shown in the figure) and the second pin form described first air switch between (2 pin of QF as shown in the figure), described second air switch is formed between described 3rd pin (3 pin of QF as shown in the figure) and the 4th pin (4 pin of QF as shown in the figure), so can improve the integrated level of device, be convenient to design.
Specifically, as shown in the figure, the X1 in figure and described voltage changing module are that 220V interchange turns 5V, are used for powering to screening machine controller 10 (i.e. such as MCU).Air switch (i.e. illustrated QF) is for the off device power supply when maintenance of equipment, and described restarting switch (i.e. illustrated SP module) can be the convex pushbutton switch be exposed on screening machine control desk; The module of SSR is marked in solid-state relay and figure; After clockwise shearing key switch 12 (illustrated SK module), first contact of solid-state relay (i.e. 1 pin of KM1 as shown in Figure 2) and the second contact (i.e. 2 pin of KM1 as shown in Figure 2) short circuit, press SP will make the self-locking adhesive of A.C. contactor 15KM1 coil thus make the 3rd contact of KM1 (i.e. 3 pin of KM1 as shown in Figure 2) and the 4th contact (i.e. 4 pin of KM1 as shown in Figure 2) short circuit, the 5th contact (i.e. 5 pin of KM1 as shown in Figure 2) and the 6th contact (i.e. 6 pin of KM1 as shown in Figure 2) short circuit switches on power; After screening machine system 1 powers on, channel entrance and system state indicator 19HY1 and HY2 exported on lintel are lit simultaneously and represent system electrification success, two radiator fan M1 and M2 simultaneously below screening machine host channel start running, and now namely screening machine enters normal mode of operation; To close screening machine, such as, after counter-clockwise rotation key switch 12, MCU triggers host computer by serial ports and closes screening machine system 1, if and host computer display unit 13 still runs, carry out the time delay in about 30 seconds, delay time is to 1 pin of rear disconnection solid-state relay and 2 pin, A.C. contactor 15 makes KM1 obtain 3 pin and 4 pin because of dead electricity, 5 pin and 6 pin disconnect, the overall power-off of screening machine system 1, now screening machine is off-position, screening machine controller 10 enters dormant state or closed condition, and aforesaid way all realizes by hardware circuit, very convenient; It should be noted that the twisting direction of above-mentioned key switch 12 is only illustration, be not limited with above-described embodiment, in other embodiments, rotate counterclockwise in order to start and rotate clockwise and also can in order to shutdown.
Preferably, screening machine controller 10 can also be integrated with faults-tolerant control instruction database, realized by storer mode, when system errors situation, the such as situation such as system power failure, sensor degradation, the instruction preset can be called control, such as corresponding triggering standby battery or warning etc.
As shown in Figure 3, present patent application provides a kind of screening machine system 1 control method, is applied to foregoing screening machine system 1, and described screening machine system 1 control method comprises:
Step S1: by screening machine controller 10 power-off described in described key switch 12 break trigger;
Step S2: detect described host computer display unit 13 and whether power on;
Step S3: if power on, then make the power-off of described screening machine system 1 after postponing Preset Time;
Step S4: if do not power on, then do not carry out time delay.
Wherein, described time delay can be realized by above-mentioned delay circuit, namely the Preset Time of time delay is 20 ~ 40 seconds, preferably shut down after 30 seconds, to avoid causing the host computer display unit 13 in screening machine system 1 also not have enough time to stop image procossing display namely by direct power down owing to firmly shutting down, thus impaired and cause screening machine system 1 fault, thus the social contradications described in the prior art caused or social safety problem.
In sum, a kind of screening machine system of present patent application and control method thereof, wherein, described screening machine system comprises: screening machine controller, connect described screening machine controller power supply unit, connect described screening machine controller for trigger described screening machine controller energising or power-off key switch, connect described screening machine controller host computer display unit, connect described control chip relay unit, connect the A.C. contactor of described relay unit and connect the two-phase alternating current source of described A.C. contactor; Wherein, described power supply unit is powered by described two-phase alternating current source; Described screening machine controller is also connected with membrane keyboard, mechanical keyboard and system state indicator, thus practical function set, make screening machine circuit board can the functional circuit of highly integrated various correspondence, the structure improved is simple, reduce design cost, reduce power consumption, increase the service life, intelligent and high-efficiency, and the application also can apply multiple safety switch design with the security and stability of elevator system.
Above-described embodiment is the principle of illustrative present patent application and effect thereof only, but not for limiting present patent application.Any person skilled in the art scholar all under the spirit and category of present patent application, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that present patent application discloses, must be contained by the claim of present patent application.
Claims (10)
1. a screening machine system, is characterized in that, comprising:
Screening machine controller, connect described screening machine controller power supply unit, connect described screening machine controller for trigger described screening machine controller energising or power-off key switch, connect described screening machine controller host computer display unit, connect described control chip relay unit, connect the A.C. contactor of described relay unit and connect the two-phase alternating current source of described A.C. contactor; Wherein, described power supply unit is powered by described two-phase alternating current source; Described screening machine controller is also connected with membrane keyboard, mechanical keyboard and system state indicator.
2. screening machine system according to claim 1, it is characterized in that, described power supply unit comprises the voltage changing module connecting described two-phase alternating current source, between the live wire end that described voltage changing module is connected in parallel on described two-phase alternating current source and zero line side, described voltage changing module comprises positive pole and negative pole for being electrically connected to described screening machine controller; Described relay unit comprises solid-state relay, the output terminal of described solid-state relay is connected to described screening machine controller, described solid-state relay comprises first input end and the second input end, and described live wire end is connected to the first input end of described solid-state relay by the first rectification circuit and the first air switch;
Described A.C. contactor comprises at least 3 pairs of main contacts, and the first contact and second contact of wherein said A.C. contactor form the first contact, and the 3rd contact and the 4th contact form the second contact, and the 5th contact and the 6th contact form the 3rd contact;
Second input end of described solid-state relay is connected to the first contact of described A.C. contactor, the solenoid of the restarting switch that described second contact process is parallel between described first contact and the second contact and described A.C. contactor is connected to the 5th contact of described A.C. contactor, is parallel with at least two described system state indicators between described 4th contact and described 6th contact;
Described 5th contact is connected to described zero line side to form power circuit through the second air switch and the second rectification circuit.
3. screening machine system according to claim 2, it is characterized in that, the described power supply unit of the closed triggering of described key switch is energized to described screening machine controller, and triggering first input end and the second input end short circuit of described solid-state relay, described restarting switch is closed to be communicated with to trigger to be communicated with and to trigger between described 5th contact with the 6th contact between described 3rd contact with the 4th contact to power on to trigger described solenoid self-locking adhesive to described A.C. contactor;
Screening machine controller power-off described in described key switch break trigger, and trigger the first input end of described solid-state relay and the second input end separated to make described A.C. contactor dead electricity to disconnect described 3rd contact and the 4th contact and to disconnect described 5th contact and the 6th contact, to make described screening machine system cut-off.
4. screening machine system according to claim 3, it is characterized in that, described screening machine controller is integrated with and is connected to described key switch and the delay circuit being connected to described host computer display unit; Described delay circuit in order to according to the testing result whether powered on to described host computer display unit with screening machine controller power-off described in trigger delay.
5. screening machine system according to claim 4, it is characterized in that, the time delay of described delay circuit is 20 ~ 40 seconds.
6. screening machine system according to claim 2, is characterized in that, is also at least parallel with the system radiating fan of system state indicator described in quantity one_to_one corresponding between described 4th contact and the 6th contact.
7. screening machine system according to claim 2, it is characterized in that, same air switching device is located at by described first air switch and the second air switch, described air switching device has at least 4 pins, wherein, form described first air switch between the first pin and the second pin, between described 3rd pin and the 4th pin, form described second air switch.
8. screening machine system according to claim 1, is characterized in that, screening machine controller is integrated with faults-tolerant control instruction database.
9. screening machine system according to claim 1, is characterized in that, described host computer display unit comprises the display screen of host computer.
10. a screening machine system control method, is characterized in that, is applied to screening machine system as claimed in claim 4, and described screening machine system control method comprises:
By screening machine controller power-off described in described key switch break trigger;
Detect described host computer display unit whether to power on;
If power on, then make described screening machine system cut-off after postponing Preset Time;
If do not power on, then do not carry out time delay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410133302.6A CN104977623A (en) | 2014-04-03 | 2014-04-03 | Security inspection machine system and control method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410133302.6A CN104977623A (en) | 2014-04-03 | 2014-04-03 | Security inspection machine system and control method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104977623A true CN104977623A (en) | 2015-10-14 |
Family
ID=54274298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410133302.6A Pending CN104977623A (en) | 2014-04-03 | 2014-04-03 | Security inspection machine system and control method therefor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104977623A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106959640A (en) * | 2017-04-16 | 2017-07-18 | 深圳市安尔通科技有限公司 | A kind of channel-type rays safety detection apparatus |
| CN108832854A (en) * | 2018-09-10 | 2018-11-16 | 中控智慧科技股份有限公司 | A kind of screening machine and its power control circuit |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU768022A1 (en) * | 1978-08-29 | 1980-09-30 | За витель А.Д.Кречетов, Г.М.Рагозин, Ю.М.Ратников и А.А.Сусликов | Device for setting-up voltage at x-ray tube |
| CN1042816A (en) * | 1988-11-14 | 1990-06-06 | 济南市章丘县人民医院普集分院 | Medical steric-and-plane dual-purpose x-ray radiographic apparatus |
| CN101036814A (en) * | 2007-04-23 | 2007-09-19 | 四川交通职业技术学院 | Automatic injecting instrument for brain angiography |
| CN201955476U (en) * | 2010-12-31 | 2011-08-31 | 深圳市天和时代电子设备有限公司 | One-key power off device for safety inspection machine |
| CN202025094U (en) * | 2011-04-12 | 2011-11-02 | 上海高晶影像科技有限公司 | Control Circuit of X-ray safety check equipment |
| CN102695352A (en) * | 2011-01-25 | 2012-09-26 | 南京普爱射线影像设备有限公司 | Power source management method for mobile X-ray production apparatus with internal power source, and apparatus thereof |
| CN103293986A (en) * | 2012-03-02 | 2013-09-11 | 深圳市蓝韵实业有限公司 | One-key startup and shutdown control device for digital X-ray photography system |
| CN203930093U (en) * | 2014-04-03 | 2014-11-05 | 上海高晶影像科技有限公司 | A kind of screening machine system |
-
2014
- 2014-04-03 CN CN201410133302.6A patent/CN104977623A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU768022A1 (en) * | 1978-08-29 | 1980-09-30 | За витель А.Д.Кречетов, Г.М.Рагозин, Ю.М.Ратников и А.А.Сусликов | Device for setting-up voltage at x-ray tube |
| CN1042816A (en) * | 1988-11-14 | 1990-06-06 | 济南市章丘县人民医院普集分院 | Medical steric-and-plane dual-purpose x-ray radiographic apparatus |
| CN101036814A (en) * | 2007-04-23 | 2007-09-19 | 四川交通职业技术学院 | Automatic injecting instrument for brain angiography |
| CN201955476U (en) * | 2010-12-31 | 2011-08-31 | 深圳市天和时代电子设备有限公司 | One-key power off device for safety inspection machine |
| CN102695352A (en) * | 2011-01-25 | 2012-09-26 | 南京普爱射线影像设备有限公司 | Power source management method for mobile X-ray production apparatus with internal power source, and apparatus thereof |
| CN202025094U (en) * | 2011-04-12 | 2011-11-02 | 上海高晶影像科技有限公司 | Control Circuit of X-ray safety check equipment |
| CN103293986A (en) * | 2012-03-02 | 2013-09-11 | 深圳市蓝韵实业有限公司 | One-key startup and shutdown control device for digital X-ray photography system |
| CN203930093U (en) * | 2014-04-03 | 2014-11-05 | 上海高晶影像科技有限公司 | A kind of screening machine system |
Non-Patent Citations (3)
| Title |
|---|
| 刘福庆: "自动联锁装置在X射线探伤安全防护中的应用", 《中国锅炉压力容器安全》 * |
| 孙兴智 等: "交流接触器的改造", 《鞍钢技术》 * |
| 马伟: "X射线安检机系统设计与实现", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106959640A (en) * | 2017-04-16 | 2017-07-18 | 深圳市安尔通科技有限公司 | A kind of channel-type rays safety detection apparatus |
| CN108832854A (en) * | 2018-09-10 | 2018-11-16 | 中控智慧科技股份有限公司 | A kind of screening machine and its power control circuit |
| CN108832854B (en) * | 2018-09-10 | 2024-05-03 | 熵基科技股份有限公司 | Security check machine and power control circuit thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210028619A1 (en) | Power supply grounding fault protection circuit | |
| CN107172755B (en) | A kind of LED light bar network current foldback circuit, driving power and television set | |
| CN203930093U (en) | A kind of screening machine system | |
| CN104977623A (en) | Security inspection machine system and control method therefor | |
| CN102684291A (en) | Control device of intelligent three-phase duel power supply conversion switch | |
| CN101980405B (en) | Multi-purpose time delay power supply socket manufactured by using time base circuit | |
| CN105098995A (en) | Switch state monitoring device in transformer substation cabinet | |
| CN102402269A (en) | Intelligent fully-automatic on-off and outage protector of computer and accessory equipment of computer | |
| CN201749170U (en) | Work state indicator for circuit breaker | |
| CN205725135U (en) | Three-phase intelligent seamless auto switching device for dual-electric source | |
| CN1246874C (en) | Microprocessor controlled AC switch circuit | |
| CN205017100U (en) | Switch condition monitoring device in transformer substation's cabinet | |
| CN204089174U (en) | A kind of Moisture-proof switch supply unit and TV thereof | |
| CN206479794U (en) | motor switch control device and system | |
| CN207799609U (en) | Wear display system | |
| CN101833066A (en) | Working state indicator of circuit breaker | |
| CN219642522U (en) | Screen ghost compensation device and display equipment | |
| CN108730597A (en) | A kind of solenoid valve overvoltage protection starting switch | |
| CN210490243U (en) | Indoor alternating current metal closed box type ring main unit | |
| CN213368195U (en) | Energy-saving lighting voltage-stabilizing control cabinet | |
| CN208970955U (en) | A kind of power distribution cabinet and distribution system | |
| CN207884500U (en) | Voltage conversion controller | |
| CN214724275U (en) | Electronic control system of robot and robot | |
| CN220912610U (en) | LED screen state monitoring device | |
| CN215733644U (en) | Three-power-supply control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151014 |