Warm-body dummy constant temperature control software design

Thermal dummy is an instrument and equipment of the thermal exchange process between the antiquity and the environment, and uses the human non-evaporated heat-dissipation process, instead of the experiment of the real person in the premium of the heat. In recent years, the relevant research units in the United States, Canada, Sweden, Finland, Germany, Denmark, Japan have developed dry hot warmers, sweating, warm body fake people, breathing warm physical fake people, soaked warmth Dummers and sweating warm body false heads, fake hands, fiasses and other test equipment, avoiding individual differences in physiology, psychological factors in human experiments, the experimental results are accurate, repetitive, and can not be tried in live people The thermal performance test experiment of clothing was carried out under conditions.

1 software design idea

Warm-body dummy constant temperature control software is a warm body An important part of the dummy temperature control system. The software uses VB 5. 0 This powerful object-oriented programming language, fully uses its rich form, control, and its properties, methods, events, real-time data acquisition, regulation and management of dummy series equipment; ( Heaters Test System Constructs shown in Figure 1).

The thermostatic constant temperature control of the warm body is to achieve a constant temperature control of the surface temperature of the fake human skin, its closed loop The control process is shown in Figure 2.

In order to achieve the above-described closed-loop control process, real-time acquisition and heat flow regulation is required for the surface temperature of the dummy skin. . This software main body uses V B 5. 0 high-level programming language, the same time introduced into V C language editing, output interface files and passed softConnection of the V. B and the V C programming language; use the A c c e s s data library to manage the collection data; use the label control to the data binding data binding data library of the A c c e s S, real-time display. Software system realism is as shown in Figure 3.

2 software system programming

2. Software system flowchart

The constant temperature control process of the heaters dummy test system is divided into temperature rise, temperature regulation and balance 3 stages, different control stages, this software is adopted. Different heat flow regulation models. Software system flow chart is shown in Figure 4.

2. 2 Software System Operation Environment

Hardware Requirements: 8 0 4 8 6 Processors and above; VGA displays; mouse M above the RAM; process input / output controller, R / V transmitter, program control source, sensor, cable, etc. Software requirements: w i n d o w s 9 8 or 9 5 Chinese platform. 2. 3 Main Windows and Features

The main window body and function of the Software System Design are shown in Table 1.

2. 4 Subpinion and Function

Subpinion and function are listed in Table 2.

3 Key design technology

Key design technology for warmer dummy constant temperature control software is mainly the design of signal detection and dynamic connection library, real-time hot flow regulation, numberAccording to the seamless connection and data of the database and the data binding control. 3. 1 signal detection and dynamic connection library design

Warm-hearted people constant temperature control test system first must be the skin temperature Real-time collections with environmental parameters, in which the warmth of the thermos melody temperature test point is 4 0 points, the environmental parameter test point is 1 0 points. To achieve real-time fast acquisition of multi-point signals, this software uses the characteristics of VC language real-time strength, designing signal real-time acquisition procedures and produces dynamic connection library N1, so that this software system has fully played advanced data management of VB languages. Function and VC language real-time characteristics, solve the fast acquisition problem of data signals.

3. 2 Real-time hot flow regulation

hot flow regulation is a thermostatic thermostatic control series equipment to achieve clothing thermal resistance testing and real human skin temperature The key to the simulation of the change process. When designing the heat-flow regulatory software design, the basic model of the human body is generated by the human body heat reaction based on the theoretical study, the resistance of different heating sections of real-time acquisition, tipping signal, and the dummy body, calculates the real-time supply of the dummy to increase the temperature and maintain the dynamic thermal balance state. Heat flow and corresponding voltage values, start the D / A converter, real-time regulation of heat flow.

3. 3 Database and data binding control Seamless connection due to the warmer dummy's thermostatic control test system needs to perform real-time acquisition processing on a large number of raw data, in software design, Select the D ATA control provided by the VB language to design the real-time acquisition and calculation results into different forms of the database, using its U PD ATA, R Efresh, etc. to update and operate the database.At the same time, select the label control, set its D A T A S O U R C E and D A T A Fi ELD attribute to the D A T A Control, and the success is now real-time interviews.

3. 4 Data Management

Warm-body dummy thermostatic control test software to achieve real-time acquisition, heat flow regulation, experimental process parameters Real-time modification, calculation, display, printing, and different test systems, the system software designs commonly used basic control objects such as timer, label, picture frame, scroll bar, buttons, dialog box, etc. The application code is implemented in time-time processing and sharing of data; and designing different forms, creates a friendly user interface, making the entire software system have good visibility and reliability.

4 Conclusion

Warm-body dummy thermostatic control system operation test showed that The system has stable operation, reliable performance, complete function, good operability, the function of the software system is:

1. real-time . The system selection W i n 9 5 or W i N 98 library version version is an operation platform, which provides multi-threaded multi-task handling capacity, and can satisfy the data collected and controlled by this temperature-controlled system and controlling the two partial control.

2. The programming of the object. The system is thought to use the modern program of the opposite side, and there is nothing to think about the structural design of the community. The program is made from a series of windows (F O R m), module (M o D U L E) and subprograms (S ub) Composition, easy to simultaneously, easy to add new functions, with strong portability.

3. The use of a database. The D A O (D A T A C C C C C C C C C C C C C C C E S O BJ E CT) provided by V B is preserved and visited by the control temperature data in the formula A c c e s s database to facilitate the data of the data.

4. Use of menu. The whole Chinese menu, layer lead guidance, step, with good visuality and operation.

5. The use of dynamic connection D L (D Y N a M I C Li N K LiB R A R Y). The model of the system is compiled into a D L-dynamic connection library, and the input / output process is completed by the system, and the sharing of resources is improved.

6. Makeup ability. In the fabrication process of the software, the has made a lot of self-container, and the invalidated aggregate data and output have been appropriately adjusted, and the system is reported, and the error can be made to make a correct reaction.