CN105107175A - Negative-pressure physical training equipment control system with loading work capacity, and control method thereof - Google Patents

Negative-pressure physical training equipment control system with loading work capacity, and control method thereof Download PDF

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Publication number
CN105107175A
CN105107175A CN201510440520.9A CN201510440520A CN105107175A CN 105107175 A CN105107175 A CN 105107175A CN 201510440520 A CN201510440520 A CN 201510440520A CN 105107175 A CN105107175 A CN 105107175A
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CN
China
Prior art keywords
pressure
microprocessor
real
amplifying circuit
negative pressure
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Application number
CN201510440520.9A
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Chinese (zh)
Inventor
周好斌
许庆
孙喜庆
徐向前
张涛
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西安石油大学
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Priority to CN201510440520.9A priority Critical patent/CN105107175A/en
Publication of CN105107175A publication Critical patent/CN105107175A/en

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Abstract

The invention discloses a negative-pressure physical training equipment control system with loading work capacity. A microprocessor is connected with a sampling signal filtering and amplifying circuit, a D/A output amplifying circuit and an optically-coupled isolation amplifying circuit, and the sampling signal filtering and amplifying circuit is connected with a pressure sensor. A control method comprises the following steps: (1) sampling a real-time pressure value in a negative-pressure cabin by the pressure sensor, processing the real-time pressure value by the sampling signal filtering and amplifying circuit, and then transmitting the real-time pressure value to the microprocessor; (2) transmitting the real-time pressure value to an upper computer by the microprocessor, and transmitting a real-time power value to the microprocessor; (3) processing a power signal by the D/A output amplifying circuit, and then driving a magnetic powder clutch; (4) achieving pressure adaptive control through a control algorithm and a sampling signal filtering algorithm embedded by the upper computer, and regulating an electromagnetic valve to be turned on or off; (5) displaying and setting operation parameters by the upper computer, controlling the operation of the system, and monitoring an operation state of the system in real time in an operation process. The system is simple and reliable in structural design, low in cost, and simple and convenient to operate, and automatic operation can be achieved.

Description

The negative pressure physical efficiency exercise equipment control system of on-load acting and control method thereof

Technical field

The invention belongs to aerospace field, be specifically related to negative pressure physical efficiency exercise equipment control system and the control method thereof of on-load acting.

Background technology

Along with high-performance fighter aircraft appearance and be in succession on active service, positive acceleration (+Gz) causes the loss of consciousness (G-LOC) and increases gradually in-flight.Namely this is the principal element of the ability to work reducing aircrew, is also the main cause threatening pilot's safety.Carry out anti-load action training on the ground and have again certain limitation.Simultaneously, when space travel, weightlessness can cause spacefarer's cardiovascular dysfunction, generation orthostatic tolerance is bad, muscular atrophy and bone loss etc., adopt various counter measure at present, the weightless above-mentioned change caused of antagonism that all can not be fully effective, only have and set up artificial gravity environment, just likely eliminate the weightless physiological system imbalance caused.Conventional method adopts human centrifuge to train to improve tolerance to +Gz, the reduction loss of consciousness incidence of aircrew to aircrew, although the method is subject to most attention, human centrifuge's apparatus expensive, is difficult to popularize.Therefore, the anti-load training method studying a kind of novel complementarity or alternative compares with equipment and meets objective demand.In recent years, temper way by the negative pressure cabin of LBNP principle design to be proved to be with this effective anti-load training and measure.Traditional LBNP storehouse needs adjunct power plant, and can not have sports simultaneously.

Summary of the invention

In order to overcome above-mentioned the deficiencies in the prior art, the object of this invention is to provide negative pressure physical efficiency exercise equipment control system and the control method thereof of on-load acting, collection LBNP and acting are taken exercise as the whole body, have the features such as pressure controling precision is high, power control accuracy is high, fast response time, good stability.The automatic operating of whole system can be realized, gather real-time pressure and data of doing work in real time simultaneously, become the lower body negative pressure training device of a perfect in shape and function.The present invention is divided into three parts, control pressurer system, flowmeter system and communication system.Control pressurer system adopts a road A/D input, double switch amount exports, real-time pressure in negative pressure cab body is sampled, by comparing with pressure set points, utilize the open and close of two Controls, two magnetic valves respectively, one of them magnetic valve is connected with vavuum pump, another magnetic valve is connected with air, thus maintains the constant pressure in negative pressure cab body.Flowmeter system adopts a road D/A to export, and given output signal can the electrodeless quantitative magnetic powder damping of Direct driver after signal amplification circuit, makes tested personnel under given power, carry out foot-operated acting.Adopt RS232 serial communication between microprocessor and host computer, the real-time pressure collected is sent to host computer by serial ports by microprocessor, and realtime power value is sent to microprocessor by serial ports by host computer.

To achieve these goals, the technical solution used in the present invention is: the negative pressure physical efficiency exercise equipment control system of on-load acting, it is characterized in that, comprise microprocessor, microprocessor is connected with sampled signal filter amplifying processing circuit, D/A output amplifier and light-coupled isolation amplifying circuit; Signal sampling filtering process amplifying circuit is connected with pressure sensor; D/A output amplifier is connected with magnetic powder cluth; Light-coupled isolation amplifying circuit A is connected with turndown relay, and light-coupled isolation amplifying circuit B is connected with booster relay; Turndown relay is connected with vavuum pump by magnetic valve, and booster relay is connected with air by boosting magnetic valve.

Described pressure sensor adopts high-precision pressure sensor.

RS232 serial communication is adopted between described microprocessor and host computer.

The compress control method of the negative pressure physical efficiency exercise equipment control system of on-load acting, comprises the following steps:

1) after initializing, in host computer, carry out the input of setting pressure, adopt pressure sensor to sample to the real-time pressure value in negative pressure cab body, real-time pressure value through adopt the process of signal filtering amplification treatment circuit laggard enter microprocessor;

2) microprocessor imports the real-time pressure value after process into host computer by RS-232 serial ports, compare with the pressure set points of setting, if identical with the force value of setting, then shut-down operation, if not identical with the force value of setting, then fuzzy is adopted to control;

3) by the open and close of the corresponding relay of fuzzy-adaptation PID control, thus drive the open and close of corresponding magnetic valve, realize the control to negative pressure cab body internal pressure;

4) host computer can realize parameter display in system cloud gray model and setting, controls the operation of whole system, and monitors in real time the running status of system in running.

Described control algolithm adopts Closed-loop Control Strategy to realize the Automatic adjusument of pressure.

The Poewr control method of the negative pressure physical efficiency exercise equipment control system of on-load acting, comprises the following steps:

1), after initializing, in host computer, the input of setting power is carried out;

2) by RS-232 serial communication, realtime power signal is sent in microprocessor;

3) microprocessor carries out D/A conversion to power signal, and the power signal after conversion, can Direct driver magnetic powder cluth after amplifying circuit.

The present invention has following obvious advantage:

Adopt high-precision pressure sensor to sample to the real-time pressure value in negative pressure cab body, ensure the precision of sampled data from source; Double switch amount is adopted to control the open and close of two relays respectively, thus drive the open and close of two magnetic valves respectively, one of them magnetic valve is connected with air, a magnetic valve is connected with vavuum pump, thus realize the control of pressure in negative pressure cab body, have that structure is simple, reliability is high, the feature of fast response time; Power controls employing one road D/A and exports, and power signal can Direct driver magnetic powder cluth after signal amplification circuit, has fast response time, advantages of simple structure and simple; Control algolithm and sampled signal filtering algorithm is embedded in control software design, control algolithm adopts Closed-loop Control Strategy to realize the Automatic adjusument of pressure, namely by measuring external pressure feedback signal, the open and close of continuous electromagnetic valve for adjusting, guarantee that pressure is in setting value all the time; Adopt RS-232 serial communication between microprocessor and host computer, parameter display in system cloud gray model and setting can be realized by host computer, control the operation of whole system, and in running, the running status of system is monitored in real time.

1) this system has the features such as corresponding speed is fast, control accuracy is high, structure is simple, antijamming capability is strong, while realizing system components function preferably, has effectively saved cost;

2) adopt magnetic powder cluth as the output source of power, exciting curent and transmitting torque are substantially linear, effectively can control and pass on required torque; And operate steadily in addition, volume is little, from heavy and light, without the advantage such as impact endurance test shock, noiseless;

3) adopt high-precision pressure sensor, coordinate corresponding Processing Algorithm, the acquisition precision that ensure that pressure signal largely, thus effectively raise the pressure controling precision of system;

4) monitor whole system in host computer and control, achieving the automatic operating of system, human-computer interaction interface is simple friendly, easy and simple to handle.

5) hardware components circuit structure design is simple, reliable, and effectively saved cost, machine Interaction Interface Design is simply friendly, easy and simple to handle, can realize the automatic operating of whole system.

Accompanying drawing explanation

Fig. 1 is control system control circuit block diagram of the present invention.

Fig. 2 is host computer operation interface of the present invention.

Fig. 3 is Stress control flow chart of the present invention.

Fig. 4 is power control procedures figure of the present invention.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention is described in further details.

See Fig. 1, the negative pressure physical efficiency exercise equipment control system of on-load acting, it is characterized in that, comprise microprocessor, microprocessor is connected with sampled signal filter amplifying processing circuit, D/A output amplifier and light-coupled isolation amplifying circuit; Signal sampling filtering process amplifying circuit is connected with pressure sensor; D/A output amplifier is connected with magnetic powder cluth; Light-coupled isolation amplifying circuit A is connected with turndown relay, and light-coupled isolation amplifying circuit B is connected with booster relay; Turndown relay is connected with vavuum pump by magnetic valve, and booster relay is connected with air by boosting magnetic valve.

Described pressure sensor adopts high-precision pressure sensor.

RS232 serial communication is adopted between described microprocessor and host computer.

The present invention includes hardware components and software section:

One, hardware components

1) adopt magnetic powder cluth as the output source of power, exciting curent and transmitting torque are substantially linear, effectively can control and pass on required torque; And operate steadily in addition, volume is little, from heavy and light, without the advantage such as impact endurance test shock, noiseless; Described magnetic powder cluth can provide certain moment, as the power stage source of load acting.

2) adopt high-precision pressure sensor, coordinate corresponding Processing Algorithm, the acquisition precision that ensure that pressure signal largely, thus effectively raise the pressure controling precision of system;

3) open and close of two relays, thus the open and close driving two magnetic valves respectively, one of them magnetic valve is connected with air, and a magnetic valve is connected with vavuum pump, thus realizes the control of pressure in negative pressure cab body;

5) RS-232 serial communication is adopted between microprocessor and host computer.

Two, software section

1) slave computer is as pressure signal collection and power stage control centre, is used for image data, calculating, processing pressure sampled data and control power output data, and carries out real-time Communication for Power with upper host computer;

2) in control software design, embed control algolithm and sampled signal filtering algorithm, control algolithm adopts Closed-loop Control Strategy to realize the Automatic adjusument of pressure, namely by measuring external pressure feedback signal, the open and close of continuous electromagnetic valve for adjusting, guarantee that pressure is in setting value all the time;

3) adopt VB6.0 to write upper computer software human-computer interaction interface, interface is simply friendly, easy and simple to handle.

Above-mentioned upper host computer is a desk-top individual host computer mainly.Microprocessor by the pressure signal that collects by RS-232 serial communication data line transfer in upper host computer, and coordinate corresponding software filtering algorithm, effectively improve force samples precision, and show in real time on host computer; The power signal of output is delivered in slave computer by upper host computer simultaneously, controls the size of magnetic powder cluth power output; And upper host computer can control operation and the stopping of whole system, after having trained, the setup parameter in upper host computer training process and measured data have carried out record at every turn.

See Fig. 2, upper computer software operation interface simple, intuitive, whole interface partition is clear and definite, is mainly divided into optimum configurations region, measured data region, real-time condition display region, control button region and guarded region in real time, and each subregion has its respective functional attributes.

See Fig. 3, the compress control method of the negative pressure physical efficiency exercise equipment control system of on-load acting, comprises the following steps:

1) after initializing, in host computer, carry out the input of setting pressure, adopt pressure sensor to sample to the real-time pressure value in negative pressure cab body, real-time pressure value through adopt the process of signal filtering amplification treatment circuit laggard enter microprocessor;

2) microprocessor imports the real-time pressure value after process into host computer by RS-232 serial ports, compare with the pressure set points of setting, if identical with the force value of setting, then shut-down operation, if not identical with the force value of setting, then fuzzy is adopted to control;

3) by the open and close of the corresponding relay of fuzzy-adaptation PID control, thus drive the open and close of corresponding magnetic valve, realize the control to negative pressure cab body internal pressure;

4) host computer can realize parameter display in system cloud gray model and setting, controls the operation of whole system, and monitors in real time the running status of system in running.

See Fig. 4, the Poewr control method of the negative pressure physical efficiency exercise equipment control system of on-load acting, comprises the following steps:

1), after initializing, in host computer, the input of setting power is carried out;

2) by RS-232 serial communication, realtime power signal is sent in microprocessor;

3) microprocessor carries out D/A conversion to power signal, and the power signal after conversion, can Direct driver magnetic powder cluth after amplifying circuit.

See Fig. 1,2,3, according to technical scheme of the present invention, the technology path of the present embodiment is: control pressurer system adopts a road A/D input, double switch amount exports, real-time pressure in negative pressure cab body is sampled, by comparing with pressure set points, utilize turndown relay to control the open and close of vavuum pump magnetic valve, booster relay controls the open and close of boosting magnetic valve, boosting magnetic valve is connected with air, thus maintains the constant pressure in negative pressure cab body.Flowmeter system adopts a road D/A to export, and given output signal can the electrodeless quantitative magnetic powder damping of Direct driver after signal sampling filtering process amplifying circuit, makes tested personnel under given power, carry out foot-operated acting.Adopt RS232 serial communication between microprocessor and host computer, the real-time pressure collected is sent to host computer by serial ports by microprocessor, and realtime power value is sent to microprocessor by serial ports by host computer.

Software systems comprise microprocessor program and upper computer software composition, the open and close of microprocessor program major control relay, the output of power signal, the collection of pressure signal and digital filtering process, and the data collected are sent in host computer, and set up real-time Communication for Power between host computer, the parameters that real-time reception host computer is sent to and control signal.Upper host computer mainly realizes human-computer interaction function, comprises data processor in software, the data collected is carried out computing according to certain algorithm, host computer shows in real time, draws pressure real-time curve, so that the situation of change of direct vision pressure.Host computer operation interface as shown in Figure 2.

Control algolithm and sampled signal filtering algorithm is embedded in control software design, control algolithm adopts Closed-loop Control Strategy to realize the Automatic adjusument of pressure, namely by measuring external pressure feedback signal, the open and close of continuous electromagnetic valve for adjusting, guarantee that pressure is in setting value all the time; Control pressurer system program flow diagram.

Claims (7)

1. the negative pressure physical efficiency exercise equipment control system of on-load acting, it is characterized in that, comprise microprocessor, microprocessor is connected with sampled signal filter amplifying processing circuit, D/A output amplifier and light-coupled isolation amplifying circuit; Signal sampling filtering process amplifying circuit is connected with pressure sensor; D/A output amplifier is connected with magnetic powder cluth; Light-coupled isolation amplifying circuit A is connected with turndown relay, and light-coupled isolation amplifying circuit B is connected with booster relay; Turndown relay is connected with vavuum pump by magnetic valve, and booster relay is connected with air by boosting magnetic valve.
2. the negative pressure physical efficiency exercise equipment control system of the on-load acting described in claim 1, it is characterized in that, described pressure sensor adopts high-precision pressure sensor.
3. the negative pressure physical efficiency exercise equipment control system of the on-load acting described in claim 1, is characterized in that, adopt RS232 serial communication between described microprocessor and host computer.
4. the negative pressure physical efficiency exercise equipment control system of the on-load acting described in claim 1, it is characterized in that, described microprocessor is also connected with Switching Power Supply.
5. the control method of the negative pressure physical efficiency exercise equipment control system of on-load acting, is characterized in that, comprise the following steps:
The compress control method of the negative pressure physical efficiency exercise equipment control system of on-load acting, comprises the following steps:
1) after initializing, in host computer, carry out the input of setting pressure, adopt pressure sensor to sample to the real-time pressure value in negative pressure cab body, real-time pressure value through adopt the process of signal filtering amplification treatment circuit laggard enter microprocessor;
2) microprocessor imports the real-time pressure value after process into host computer by RS-232 serial ports, compare with the pressure set points of setting, if identical with the force value of setting, then shut-down operation, if not identical with the force value of setting, then fuzzy is adopted to control;
3) by the open and close of the corresponding relay of fuzzy-adaptation PID control, thus drive the open and close of corresponding magnetic valve, realize the control to negative pressure cab body internal pressure;
4) host computer can realize parameter display in system cloud gray model and setting, controls the operation of whole system, and monitors in real time the running status of system in running.
6. the control method of the negative pressure physical efficiency exercise equipment control system of on-load acting according to claim 5, is characterized in that, described control algolithm adopts Closed-loop Control Strategy to realize the Automatic adjusument of pressure.
7. the Poewr control method of the negative pressure physical efficiency exercise equipment control system of on-load acting, is characterized in that, comprise the following steps:
1), after initializing, in host computer, the input of setting power is carried out;
2) by RS-232 serial communication, realtime power signal is sent in microprocessor;
3) microprocessor carries out D/A conversion to power signal, and the power signal after conversion, can Direct driver magnetic powder cluth after amplifying circuit.
CN201510440520.9A 2015-07-24 2015-07-24 Negative-pressure physical training equipment control system with loading work capacity, and control method thereof CN105107175A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105498178A (en) * 2016-01-17 2016-04-20 中国人民解放军第四军医大学 Negative-pressure physical training apparatus

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Publication number Priority date Publication date Assignee Title
JP2002360644A (en) * 2001-04-02 2002-12-17 Gunze Ltd Motion assisting device
CN2530679Y (en) * 2002-01-23 2003-01-15 孙喜庆 Manual power negative pressure exercising cabin for lower part of body
CN2593764Y (en) * 2002-11-28 2003-12-24 中国人民解放军空军航空医学研究所 Cardiovascular function exerciser
CN200973938Y (en) * 2006-11-10 2007-11-14 陈祝平 Running machine capable of relieving sports fatigue quickly
CN101896152A (en) * 2007-10-15 2010-11-24 奥尔特格公司 Systems, methods and apparatus for differential air pressure devices
CN202502629U (en) * 2012-04-10 2012-10-24 中国人民解放军第四军医大学 Flight personnel body positive-negative pressure training apparatus
CN103537050A (en) * 2012-07-11 2014-01-29 中国人民解放军第四军医大学 Treadmill enabling lower part of body to be under negative pressure
US20140106935A1 (en) * 2011-06-08 2014-04-17 Fiona Mary Egan Exercise device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002360644A (en) * 2001-04-02 2002-12-17 Gunze Ltd Motion assisting device
CN2530679Y (en) * 2002-01-23 2003-01-15 孙喜庆 Manual power negative pressure exercising cabin for lower part of body
CN2593764Y (en) * 2002-11-28 2003-12-24 中国人民解放军空军航空医学研究所 Cardiovascular function exerciser
CN200973938Y (en) * 2006-11-10 2007-11-14 陈祝平 Running machine capable of relieving sports fatigue quickly
CN101896152A (en) * 2007-10-15 2010-11-24 奥尔特格公司 Systems, methods and apparatus for differential air pressure devices
US20140106935A1 (en) * 2011-06-08 2014-04-17 Fiona Mary Egan Exercise device
CN202502629U (en) * 2012-04-10 2012-10-24 中国人民解放军第四军医大学 Flight personnel body positive-negative pressure training apparatus
CN103537050A (en) * 2012-07-11 2014-01-29 中国人民解放军第四军医大学 Treadmill enabling lower part of body to be under negative pressure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105498178A (en) * 2016-01-17 2016-04-20 中国人民解放军第四军医大学 Negative-pressure physical training apparatus

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Application publication date: 20151202