CN109448496A - A kind of training examination system - Google Patents

A kind of training examination system Download PDF

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Publication number
CN109448496A
CN109448496A CN201811640132.5A CN201811640132A CN109448496A CN 109448496 A CN109448496 A CN 109448496A CN 201811640132 A CN201811640132 A CN 201811640132A CN 109448496 A CN109448496 A CN 109448496A
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CN
China
Prior art keywords
platform
fault
module
examination
refrigeration
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Pending
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CN201811640132.5A
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Chinese (zh)
Inventor
宁柯
李�杰
张珍明
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Wuhan Siyuan Jiuxing Technology Co Ltd
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Wuhan Siyuan Jiuxing Technology Co Ltd
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Priority to CN201811640132.5A priority Critical patent/CN109448496A/en
Publication of CN109448496A publication Critical patent/CN109448496A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B9/00Simulators for teaching or training purposes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B25/00Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
    • G09B25/02Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B7/00Electrically-operated teaching apparatus or devices working with questions and answers

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

Training examination system disclosed in the present application, compared with prior art, comprising: server checking system;The examination terminal being connect with the server checking system;The refrigeration system being connect with the examination terminal;It is connect with the refrigeration system, the experimental evaluation platform of training operation is carried out for personnel.Training examination system provided by the present application, by using advanced digitlization cloud, Ethernet server-side is carrier, cluster management is carried out to examination terminal, server checking system can be managed by professional technician in strange land, compared to existing technologies, the platform of real training and examination can be provided for Refrigeration Specialty student, improve the efficiency of refrigeration equipment real training and skill examination.

Description

A kind of training examination system
Technical field
This application involves teaching check-up system Instrument technology fields, more specifically more particularly to a kind of training examination system.
Background technique
With the rise of Refrigeration & Air-Conditioning technology specialty, the high professional qualification for grasping Refrigeration Technique is had increasing need in refrigeration industry The talent is often traditionally, in numerous schools and enterprise the mode culture technique personnel to be trained an apprentice with master worker, much full in this way Foot not growth requirement at this stage.In this case, Higher Vocational College and enterprise are to refrigerating field high professional qualification type people The culture of ability is most important, and to turn out outstanding refrigeration high-skilled personnel, matingly Practical training equipment is essential.
Currently, it is more single to the refrigeration equipment study relevant Practical training equipment of examination, it can only be provided for student single Operation practice platform, real training low efficiency.
Therefore, how a kind of training examination system is provided, real training can be provided for Refrigeration Specialty student and is examined flat Platform improves the efficiency of refrigeration equipment real training and skill examination, has become those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
In order to solve the above technical problems, the application provides a kind of training examination system, can be mentioned for Refrigeration Specialty student For the platform of real training and examination, the efficiency of refrigeration equipment real training and skill examination is improved.
Technical solution provided by the present application is as follows:
The application provides a kind of training examination system, comprising: server checking system;It is connect with server checking system Examination terminal;The refrigeration system being connect with examination terminal;It is connect with refrigeration system, the experiment for carrying out training operation for personnel is examined Core platform.
Further, in a kind of preferred mode of the present invention, experimental evaluation platform includes: practical traning platform pedestal;It is installed on Practical operation platform main body on practical traning platform pedestal;The equipment platform being installed on practical traning platform pedestal;The refrigeration being set on equipment platform Unit;The evaluating platform main body being installed on practical traning platform pedestal;The touching display screen being set in evaluating platform main body;It is installed on Air-conditioning internal machine in evaluating platform main body.
Further, in a kind of preferred mode of the present invention, practical operation platform main body includes: the electricity on practical traning platform pedestal Gas patching operations module;Pressure leakage detection operation module on practical traning platform pedestal;Behaviour is vacuumized on practical traning platform pedestal Make module;Filling refrigerant operation module on practical traning platform pedestal;Operation debugging operations mould on practical traning platform pedestal Block;Be additionally provided in practical operation platform main body: installation operation side plate, installation operation side plate for student practice installation refrigeration component, Hand valve, solenoid valve, terminal box, table lens.
Further, in a kind of preferred mode of the present invention, experimental evaluation platform further include: be installed on evaluating platform master Monitoring device on body, monitoring device include: the first camera and second camera being set in evaluating platform main body, and first Camera is fixedly installed in evaluating platform main body, and the camera angle of second camera is adjustable;It is installed on practical traning platform pedestal, and The first locker below practical operation platform main body;It is installed on practical traning platform pedestal, and is located at the second storage below equipment platform Object cabinet;Be additionally provided with copper pipe fixed mechanism in practical operation platform main body, copper pipe fixed mechanism be used for in refrigeration system active joint and Pipeline is fixed.
Further, in a kind of preferred mode of the present invention, training examination system further include: double exigency stop systems, double urgency Stop system includes: the K1 relay coil for controlling K1 normally-closed contact switch on and off;Electricity where K1 relay coil The normally closed emergency stop switch of the SB1 of road;Scram button SB1 in evaluating platform main body, for disconnecting K1 relay coil;If In the K2 normally-closed contact switch on the circuit where K1 relay coil;For controlling the K2 relay of K2 normally-closed contact switch on and off Device coil.
Further, in a kind of preferred mode of the present invention, whether K2 relay coil is powered by refrigeration apparatus for checking In refrigeration system control, refrigeration system connect with examination terminal by signal, and examination terminal passes through signal and server examination System connection, server checking system are used to down send instructions to examination terminal, and terminal of taking an examination is used to under refrigeration system send instructions, Refrigeration system receives instruction activation K2 relay coil, and the circuit where K1 relay coil specifically accesses 24V DC power supply.
Further, in a kind of preferred mode of the present invention, double exigency stop systems further include: connect with server checking system The video surveillance module connect, video surveillance module decide whether remotely to activate K2 relay for administrative staff by video observation Coil;Double exigency stop systems further include the visual alarm connecting with examination terminal;The voice guard being connect with examination terminal.
Further, in a kind of preferred mode of the present invention, training examination system further include: refrigeration apparatus for checking failure Diagnostic system;Apparatus for checking fault diagnosis system of freezing includes: diagnostic signal sending module, for connecting in experimental evaluation platform Power supply or when receiving diagnostic command, sends diagnostic signal to object to be measured;Signal reading module is detected, for examining from experiment Detection signal is read in device or circuit in core platform;Fault determination module, for according to detection signal determining experimental evaluation Platform is in normal condition or abnormal condition;Failure confirmation module and central processing module again;
Confirmation module is used for when fault determination module determines that experimental evaluation platform is in abnormal condition, again failure again There is fault-free according to detection signal determining experimental evaluation platform;Confirmation module is also used to deposit in judgment experiment evaluating platform failure again Fault code is sent to central processing module in failure;
Central processing module sends out fault code for being analyzed according to failure of the fault code to device or circuit It send to examination terminal.
Further, in a kind of preferred mode of the present invention, apparatus for checking fault diagnosis system of freezing further include:
State parameter read module, for reading when detecting that device in experimental evaluation platform or circuit power on Take the state parameter of the device or circuit in experimental evaluation platform;
Power supply status read module, for reading when detecting that device in experimental evaluation platform or circuit power on Take the power supply status of refrigeration apparatus for checking;
Transducer fault detection circuit, including one-to-one input terminal and output end, each input terminal can be with experiments Sensor connection in evaluating platform, Transducer fault detection circuit are exported from corresponding output end and are passed in sensor fault Sensor fault-signal;
Solenoid valve failure detection circuit, including one-to-one input terminal and output end, each input terminal can be with experiments Solenoid valve connection in evaluating platform, solenoid valve failure detection circuit is when detecting solenoid valve failure, from corresponding output Hold the fault-signal of output solenoid valve.
Further, in a kind of preferred mode of the present invention, apparatus for checking fault diagnosis system of freezing further include:
Fault message storage module, the fault message occurred for storing device in experimental evaluation platform or circuit;
Fault message display module, device from storage experimental evaluation platform to user or circuit for being shown in occurred Fault message;
Fault message enquiry module, the fault code for being inputted according to user inquire failure corresponding with fault code Information, and fault message is shown at fault message display module;
Refrigeration apparatus for checking fault diagnosis system further include: fault location module monitors refrigeration apparatus for checking for working as After status fault and/or performance parameter exception, fault location is carried out.
A kind of training examination system provided by the invention, compared with prior art, comprising: server checking system;With clothes The examination terminal of device checking system of being engaged in connection;The refrigeration system being connect with examination terminal;Connect with refrigeration system, for personnel into The experimental evaluation platform of row training operation.By using advanced digitlization cloud, Ethernet server-side is carrier, to examination Terminal carries out cluster management, and server checking system can be managed by professional technician in strange land, and experimental evaluation platform is for The installation and connection operation that member carries out device relevant to refrigeration can be compared to existing technologies Refrigeration Specialty Member provides the platform of real training and examination, improves the efficiency of refrigeration equipment real training and skill examination.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.
Fig. 1 is the configuration diagram of training examination system provided in an embodiment of the present invention;
The schematic diagram of experimental evaluation platform in Fig. 2 training examination system provided in an embodiment of the present invention;
The schematic diagram of double exigency stop systems in Fig. 3 training examination system provided in an embodiment of the present invention;
The signal of refrigeration apparatus for checking fault diagnosis system in Fig. 4 training examination system provided in an embodiment of the present invention Figure.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution in the application, below in conjunction with the application reality The technical scheme in the embodiment of the application is clearly and completely described for the attached drawing for applying in example, it is clear that described embodiment Only a part of the embodiment of the application, instead of all the embodiments.Based on the embodiment in the application, this field is common Technical staff's every other embodiment obtained without making creative work belongs to the model of the application protection It encloses.
It should be noted that it can directly exist when element is referred to as on " being fixed on " or " being set to " another element On another element or indirectly setting on the other element;When an element is known as " being connected to " another element, It can be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", under ", "front", "rear", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed System is merely for convenience of description the application and simplifies description, rather than the device or element of indication or suggestion meaning must have Specific orientation is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.It is multiple in the description of the present application ", " several " be meant that two or Two or more, unless otherwise specifically defined.
It should be clear that structure depicted in this specification attached drawing, ratio, size etc., only to cooperate specification revealed Content is not limited to the enforceable qualifications of the application, therefore does not have so that those skilled in the art understands and reads Technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the application institute energy Under the effect of generation and the purpose that can reach, it should all still fall in techniques disclosed in this application content and obtain the range that can cover It is interior.
Please be as shown in Figures 1 to 4, training examination system provided by the embodiments of the present application, comprising: server checking system 1; The examination terminal 2 being connect with the server checking system 1;The refrigeration system 3 being connect with the examination terminal 2;With the system Cooling system 3 connects, and the experimental evaluation platform 4 of training operation is carried out for personnel.
The embodiment of the present invention provides a kind of training examination system, compared with prior art, comprising: server checking system 1; The examination terminal 2 being connect with server checking system 1;The refrigeration system 3 being connect with examination terminal 2;It is connect with refrigeration system 3, The experimental evaluation platform 4 of training operation is carried out for personnel.By using advanced digitlization cloud, Ethernet server-side is Carrier carries out cluster management to examination terminal 2, and server checking system 1 can be managed by professional technician in strange land, and experiment is examined Core platform 4 compared to existing technologies can for the installation and connection operation that student carries out device relevant to refrigeration The platform of real training and examination is provided for Refrigeration Specialty student, improves the efficiency of refrigeration equipment real training and skill examination.
Specifically, in embodiments of the present invention, experimental evaluation platform 4 includes: practical traning platform pedestal 401;It is installed on practical traning platform Practical operation platform main body 402 on pedestal 401;The equipment platform 403 being installed on practical traning platform pedestal 401;It is set to equipment platform 403 On refrigeration unit 404;The evaluating platform main body 405 being installed on practical traning platform pedestal 401;It is set to evaluating platform main body 405 On touching display screen 406;The air-conditioning internal machine 407 being installed in evaluating platform main body 405.
Wherein, examination terminal 2 is made of industrial host computer and display touch screen, and industrial host computer is provided with examination eventually Hold 2 softwares for examining trained use, it is aobvious that 3 control circuit of refrigeration system and industrial host computer are placed in 3 touch-control of refrigeration system In the electric cabinet of display screen behind.3 touching display screen of refrigeration system is the control circuit of refrigeration system 3, control circuit input behind Voltage is 24V, and refrigerating system circuit mainly controls compressor in refrigerating circuit, solenoid valve, expansion valve, water pump, fan and opens Stop, and the electric current in refrigeration system 3, voltage, temperature, pressure detected, at the same to button, knob, switch state into Row monitoring.It is furnished with water cooler and air cooler in training examination system, can according to circumstances selects, water cooler is connected using hose and equipment It connects, when use can be put depending on the site environment.
Specifically, in embodiments of the present invention, practical operation platform main body 402 includes: electrically connecing on practical traning platform pedestal 401 Line operation module;Pressure leakage detection operation module on practical traning platform pedestal 401;Vacuumizing on practical traning platform pedestal 401 Operation module;Filling refrigerant operation module on practical traning platform pedestal 401;Operation tune on practical traning platform pedestal 401 Try operation module;Be additionally provided in practical operation platform main body: installation operation side plate, installation operation side plate practice installation refrigeration for student Component, hand valve, solenoid valve, terminal box, table lens.
Specifically, in embodiments of the present invention, experimental evaluation platform 4 further include: the prison being installed in evaluating platform main body Device is controlled, monitoring device includes: the first camera 410 and second camera 411 being set in evaluating platform main body 405, the One camera 410 is fixedly installed in evaluating platform main body 405, and the camera angle of second camera 411 is adjustable;It is installed on real training On stylobate frame 401, and it is located at the first locker 408 of 402 lower section of practical operation platform main body;It is installed on practical traning platform pedestal 401, and position The second locker 409 in 403 lower section of equipment platform;Copper pipe fixed mechanism, the fixed machine of copper pipe are additionally provided in practical operation platform main body 402 Structure be used for in refrigeration system 3 active joint and pipeline be fixed.
Wherein, the first camera 410 is adjustable after removing shell, and second camera 411 can be adjusted the angle directly with hand.
Specifically, in embodiments of the present invention, training examination system further include: double exigency stop systems 5, double exigency stop systems 5 wrap It includes: for controlling the K1 relay coil 501 of K1 normally-closed contact switch on and off;Circuit where K1 relay coil 501 On the normally closed emergency stop switch 504 of SB1;Scram button SB1 in evaluating platform main body, for disconnecting K1 relay coil 501;Scram button in evaluating platform main body, scram button are opened for triggering the normally closed emergency stop switch 504 of SB1;It is set to The K2 normally-closed contact switch 502 on circuit where K1 relay coil 501;For controlling 502 on-off of K2 normally-closed contact switch K2 relay coil 503.
Specifically, in embodiments of the present invention, whether K2 relay coil 503 is powered by the refrigeration in refrigeration apparatus for checking System control, refrigeration system 3 are connect with examination terminal 2 by signal, and examination terminal 2 passes through signal and server checking system 1 Connection, server checking system 1 are used to down send instructions to examination terminal 2, and terminal 2 of taking an examination is used to under refrigeration system 3 send instructions, Refrigeration system 3 receives instruction activation K2 relay coil 503, and the circuit where K1 relay coil 501 specifically accesses 24V direct current Power supply.
Specifically, in embodiments of the present invention, double exigency stop systems 5 further include: the video being connect with server checking system 1 Monitoring modular, video surveillance module decide whether remotely to activate K2 relay coil 503 for administrative staff by video observation; Double exigency stop systems further include the visual alarm connecting with examination terminal 2;The voice guard being connect with examination terminal 2.
Specifically, in embodiments of the present invention, training examination system further include: refrigeration apparatus for checking fault diagnosis system 6; Apparatus for checking fault diagnosis system 6 of freezing includes: diagnostic signal sending module 601, for powering in experimental evaluation platform 4 Or when receiving diagnostic command, diagnostic signal is sent to object to be measured;Signal reading module 602 is detected, for examining from experiment Detection signal is read in device or circuit in core platform 4;Fault determination module 603, for according to detection signal determining experiment Evaluating platform 4 is in normal condition or abnormal condition;Failure confirmation module 604 and central processing module 605 again;
Confirmation module is used for when fault determination module determines that experimental evaluation platform 4 is in abnormal condition failure again, then It is secondary that fault-free is had according to detection signal determining experimental evaluation platform 4;Confirmation module 604 is also used to examine in judgment experiment failure again There are send fault code to central processing module 605 when failure for platform 4;
Central processing module 605 according to failure of the fault code to device or circuit for analyzing, and by failure generation Code is sent to examination terminal 2.
Specifically, in embodiments of the present invention, refrigeration apparatus for checking fault diagnosis system further include: state parameter read module 606, for reading the device in experimental evaluation platform 4 when detecting that device in experimental evaluation platform 4 or circuit power on The state parameter of part or circuit;
Power supply status read module 607, for detecting that device in experimental evaluation platform 4 or circuit power on When, read the power supply status of refrigeration apparatus for checking;
Transducer fault detection circuit, including one-to-one input terminal and output end, each input terminal can be with experiments Sensor connection in evaluating platform 4, Transducer fault detection circuit are exported from corresponding output end and are passed in sensor fault Sensor fault-signal;
Solenoid valve failure detection circuit, including one-to-one input terminal and output end, each input terminal can be with experiments Solenoid valve connection in evaluating platform 4, solenoid valve failure detection circuit is when detecting solenoid valve failure, from corresponding output Hold the fault-signal of output solenoid valve.
Specifically, in embodiments of the present invention, refrigeration apparatus for checking fault diagnosis system further include: fault message storage module 608, the fault message occurred for storing device in experimental evaluation platform 4 or circuit;Fault message display module 609, For showing device or the fault message that occurred of circuit in storage experimental evaluation platform 4 to user;Fault message inquires mould Block 610, the fault code for being inputted according to user inquire fault message corresponding with fault code, and aobvious in fault message Show and shows fault message at module;
Refrigeration apparatus for checking fault diagnosis system further include: fault location module monitors refrigeration apparatus for checking for working as After status fault and/or performance parameter exception, fault location is carried out.
It more specifically illustrates, training examination system involved in the embodiment of the present invention, uses advanced digitlization cloud Technology, Ethernet server-side are carrier, can be realized and carry out cluster management to examination terminal 2.Server can be by professional technique people Member manages in strange land.In examination process with play can different type different stage examinee take an examination, inhomogeneity examinee not at the same level With field examination paper examination question using out-of-order distribution, examination pattern has advance, initiative.
Hardware in training examination system is high-end using industrial application configuration, is that control is flat with high-performance industrial control all-in-one machine Platform, control circuit board are A grades of FR-4 army labor and materials lead-free process manufactures, and all peripheral sensors are connected using welding fast connecting terminal is exempted It connects, substantially increases the convenience of maintenance, installation.
Control section in training examination system uses medical twin-stage power-supply filter, improves the anti-interference ability of system, The reliability of raising system, simultaneity factor contain earth leakage protective device, improve the safety of equipment and personnel.
Wherein, the console of experimental evaluation platform 4 uses 24V drive control, and more traditional 220V drive control circuit is more pacified Entirely.Except high-pressure and low-pressure mechanical compression table is increased in electronic pressure sensor external compression circuit, electron pressure instrument is by data On the touchscreen, convenient for observing in use, mechanical compression table is in the case where pressure circuit overloads centralized displaying, touching Mechanical contact is sent out, triggering is reliable and stable, while playing the role of duplicate protection to the pressure circuit of system.High performance electric current electricity Pressure monitoring sampling A/D chip, Control management system use high performance chips, chip to the acquisition conversion speed of signal up to 100,000 times/ Second, guarantee the power system security of training examination system.
Wherein, experimental evaluation platform 4 can both pass through mechanical emergency stop switch manual control circuit using double emergency stop designs Into emergency stop state, can also according to circumstances decide whether start electronics emergency stop in its sole discretion by system, control equipment is made to enter emergency stop State, electronics emergency stop can remotely be controlled by server, be used convenient for management and in emergency circumstances.Under examination process examination question Hair, answer recycling realized using ethernet communication, and it is short to examine business process chain, is greatly reduced risk of divulging a secret, is reduced disturbing factor, examination More secure and reliable.
Wherein, every two video cameras of set examination platform device configuration are monitored, equipment using 1080P high-definition camera One of camera non-interrupted picture recording after normal starting, another camera are recorded a video according to examination demand, are wanted meeting use System resource is saved in the case where asking to greatest extent, improves system response time, guarantees system fluency.
Wherein, touch screen can also be to cooling water pump, cooling fan, interior machine fan, the pendulum wind-powered electricity generation on experimental evaluation platform 4 Machine, compressor, system power supply are controlled, and touch screen provides mass data reference to operator, are easy to use, study, analysis, Included touch function makes to operate more convenient, and ease for use is good.
Device configuration training operation platform and checking system can carry out all kinds of refrigeration examinations and certification examination at different levels Configuration, using true exemplary refrigerant component, automatically controlled component, end-equipment can carry out the installation of refrigeration system 3, debugging, dimension It repairs, detect, the multinomial professional skill such as electric-control system installation, debugging, maintenance, detection operates real training.It can comprehensive training and assessment Every Comprehensive Vocation Ability of member, achievees the purpose that all kinds of examinations at different levels can be completed.
More specifically, in embodiments of the present invention, using high-performance industrial control all-in-one machine allied industry grade touch screen, integrated Control circuit, intelligence instrument, electric expansion valve, pressure controller etc. realize complete machine joint control.The highly integrated electric current of control circuit, electricity Pressure, temperature, pressure, output, input, infrared, 232 communications, 4585 communications, receiver module integrated design, all peripheries pass Sensor is connected using welding fast connecting terminal is exempted.It is designed using double emergency stops, built-in electric leakage overload protection, overload of compressor and starting Protection, pressure protection, twin-stage power-supply filter are greatly reduced because interference causes the possibility of maloperation, effective lifting system safety Performance.Real training monitoring system is configured, real training examination is acquired in real time, live video and answer process total data are by servicing Device backup facilitates history to trace.
Wherein, practical traning platform pedestal uses aluminum profile or steel construction for main frame, matches stainless steel and PVC material, knot Structure is firm, handsome in appearance has the characteristics that fire prevention, waterproof, wear-resisting.In addition, drawer and function counter are configured with, for accommodating examination Tool and additional device, place tool data and relevant device.Practical traning platform pedestal bottom is equipped with universal wheel and locking is universal The locking mechanism of wheel, it is mobile and fixed when being easy to use.
Wherein, monitoring device is mainly made of video high-definition camera and video server, by network and server into Row connection, equipment one of camera non-interrupted picture recording after normally starting dock, another camera with provincial Test Centre It needs to carry out process video recording according to examination paper, it can be achieved that real training examination process monitors entirely.
Wherein, the operative sensor in training examination system is detected using self detection mode, and sensor is using number temperature Sensor is spent, refrigeration system 3 sends digital command to experimental evaluation platform digital sensor, and digital sensor does not return as required Multiple instruction, i.e. identification sensor is impaired, gives higher level's control terminal by 3 reporting fault of refrigeration system.
Wherein, the control system in training examination system uses medical twin-stage power-supply filter, improves the anti-interference of system Ability improves the reliability of system, and simultaneity factor contains earth leakage protective device, improves the safety of equipment and personnel.Experiment is examined 4 console of core platform uses 24V drive control, and more traditional 220V drive control circuit is safer.Except electronic pressure sensor Increase high-pressure and low-pressure mechanical compression table in external compression circuit, electron pressure instrument will be shown on the touchscreen in data set, just In observing in use, mechanical compression table is in the case where pressure circuit overloads, Crush trigger contact, and triggering stabilization can It leans on, while playing the role of duplicate protection to the pressure circuit of system.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.

Claims (10)

1. a kind of training examination system characterized by comprising
Server checking system;
The examination terminal being connect with the server checking system;
The refrigeration system being connect with the examination terminal;
It is connect with the refrigeration system, the experimental evaluation platform of training operation is carried out for personnel.
2. training examination system according to claim 1, which is characterized in that the experimental evaluation platform includes: practical traning platform Pedestal;The practical operation platform main body being installed on the practical traning platform pedestal;The equipment platform being installed on the practical traning platform pedestal;Setting Refrigeration unit on the equipment platform;The evaluating platform main body being installed on the practical traning platform pedestal;It is set to described examine Touching display screen in core main platform body;The air-conditioning internal machine being installed in the evaluating platform main body.
3. training examination system according to claim 2, which is characterized in that the practical operation platform main body includes:
Electrical wiring operation module on the practical traning platform pedestal;
Pressure leakage detection operation module on the practical traning platform pedestal;
Vacuum pumping module on the practical traning platform pedestal;
Filling refrigerant operation module on the practical traning platform pedestal;Behaviour is debugged in operation on the practical traning platform pedestal Make module;
Be additionally provided in the practical operation platform main body: installation operation side plate, the installation operation side plate practice installation system for student Cold component, hand valve, solenoid valve, terminal box, table lens.
4. training examination system according to claim 3, which is characterized in that the experimental evaluation platform further include:
The monitoring device being installed in the evaluating platform main body, the monitoring device include:
The first camera and second camera being set in the evaluating platform main body, first camera are fixedly installed in In the evaluating platform main body, the camera angle of the second camera is adjustable;
It is installed on the practical traning platform pedestal, and is located at the first locker below the practical operation platform main body;It is installed on the reality It instructs on stylobate frame, and is located at the second locker below the equipment platform;
Copper pipe fixed mechanism is additionally provided in the practical operation platform main body, the copper pipe fixed mechanism is used for the activity in refrigeration system Connector and pipeline are fixed.
5. training examination system according to claim 1, which is characterized in that training examination system further include: double emergency stop systems System, double exigency stop systems include:
For controlling the K1 relay coil of the K1 normally-closed contact switch on and off;
The normally closed emergency stop switch of SB1 on the circuit where the K1 relay coil;
Scram button SB1 in evaluating platform main body, for disconnecting K1 relay coil;
K2 normally-closed contact switch on the circuit where the K1 relay coil;It is opened for controlling the K2 normally-closed contact Close the K2 relay coil of on-off.
6. training examination system according to claim 5, which is characterized in that whether the K2 relay coil is powered by making Refrigeration system control in cold apparatus for checking, refrigeration system are connect with the examination terminal by signal, and examination terminal passes through letter It number is connect with the server checking system, the server checking system is used to down send instructions to examination terminal, the examination Terminal is used for sending instructions under refrigeration system, and refrigeration system receives instruction and activates the K2 relay coil, the K1 after Circuit where electric apparatus coil specifically accesses 24V DC power supply.
7. training examination system according to claim 6, which is characterized in that double exigency stop systems further include: examined with server The video surveillance module of core system connection, the video surveillance module are decided whether for administrative staff by video observation long-range Activate the K2 relay coil;Double exigency stop systems further include the visual alarm connecting with the examination terminal;It is examined with described Try the voice guard of terminal connection.
8. training examination system according to claim 1, which is characterized in that training examination system further include: refrigeration examination Fault Diagnosis of Mechanical Equipment;The refrigeration apparatus for checking fault diagnosis system includes:
Diagnostic signal sending module, for when experimental evaluation platform powers on or receives diagnostic command, to be measured right As sending diagnostic signal;
Signal reading module is detected, for reading detection signal from the device or circuit in experimental evaluation platform;
Fault determination module, for being in normal condition or improper shape according to the detection signal determining experimental evaluation platform State;
Failure confirmation module and central processing module again;
Confirmation module is used for when the fault determination module determines that experimental evaluation platform is in abnormal condition the failure again, There is fault-free again according to the detection signal determining experimental evaluation platform;Confirmation module is also used to judging in fact the failure again Testing evaluating platform, there are send fault code to the central processing module when failure;
The central processing module is used to be analyzed according to failure of the fault code to the device or circuit, and will be former Barrier code is sent to examination terminal.
9. training examination system according to claim 8, which is characterized in that refrigeration apparatus for checking fault diagnosis system is also Include:
State parameter read module, it is real for reading when detecting that device in experimental evaluation platform or circuit power on Test the state parameter of the device or circuit in evaluating platform;
Power supply status read module, for reading system when detecting that device in experimental evaluation platform or circuit power on The power supply status of cold apparatus for checking;
Transducer fault detection circuit, including one-to-one input terminal and output end, each input terminal can be with experimental evaluations Sensor connection in platform, the Transducer fault detection circuit are exported from corresponding output end and are passed in sensor fault Sensor fault-signal;
Solenoid valve failure detection circuit, including one-to-one input terminal and output end, each input terminal can be with experimental evaluations Solenoid valve connection in platform, solenoid valve failure detection circuit are defeated from corresponding output end when detecting solenoid valve failure The fault-signal of solenoid valve out.
10. training examination system according to claim 9, which is characterized in that refrigeration apparatus for checking fault diagnosis system Further include:
Fault message storage module, the fault message occurred for storing device in experimental evaluation platform or circuit;
Fault message display module, for showing device or the failure that occurred of circuit in storage experimental evaluation platform to user Information;
Fault message enquiry module, the fault code for being inputted according to user inquire failure corresponding with the fault code Information, and fault message is shown at the fault message display module;
The refrigeration apparatus for checking fault diagnosis system further include: fault location module monitors refrigeration apparatus for checking for working as After status fault and/or performance parameter exception, fault location is carried out.
CN201811640132.5A 2018-12-29 2018-12-29 A kind of training examination system Pending CN109448496A (en)

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Application publication date: 20190308