CN102520741A - Constructed large-scale infrared standard heat source system based on Zigbee wireless network - Google Patents
Constructed large-scale infrared standard heat source system based on Zigbee wireless network Download PDFInfo
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- CN102520741A CN102520741A CN2011103243849A CN201110324384A CN102520741A CN 102520741 A CN102520741 A CN 102520741A CN 2011103243849 A CN2011103243849 A CN 2011103243849A CN 201110324384 A CN201110324384 A CN 201110324384A CN 102520741 A CN102520741 A CN 102520741A
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Abstract
Aiming at difficulties of a large-scale infrared standard heat source based on heat source module splicing in aspects of equipment debugging and maintenance storage, the invention brings forward a large-scale infrared standard heat source method based on a Zigbee wireless network communication control system. In the invention, a Zigbee wireless network is introduced into a large-scale infrared standard heat source communication control system, and channels of a control signal and power transmission are isolated. A temperature controller, a Zigbee wireless terminal (a Zigbee wireless chip and a wireless antenna), and a standard power electrical input interface are packaged in a heat source splicing module. A host computer, a Zigbee wireless coordinator, a Zigbee wireless router and a Zigbee wireless terminal form a communication control network. According to the above design, interchangeability of a heat source module is raised, complexity in the aspects of the equipment debugging and storage maintenance is reduced, quantity of line construction in the system is reduced, and system integration and module development are facilitated.
Description
Technical field
The present invention relates to the infrared standard thermal source of outdoor large.
Background technology
Large-scale infrared standard thermal source is the important checkout equipment of infrared simulation test macro, and its principle is the standard picture that is spliced to form the simulation of temperature controllable gradient through the thermal source module.Thermal source is generally realized by resistance wire energising heating.Consider thermal resistance variation characteristic under the indoor and outdoor condition of work, require equipment under the condition that guarantees temperature control precision, have stronger temperature variation adaptive capacity to environment.This makes the heat of equipment dissipate much larger than the simulated target source of visible light wave range; Therefore based on the infrared large-scale standard heat source system of the indoor and outdoor thermal source module splicing construction under in control and control and adopt a large amount of high power devices aspect electric; This makes the structure of system along with the increase of standard thermal source analog image pixel, i.e. the increase of thermal source concatenation module number and become complicated huge; Simultaneously aspect control, general have a line control signal transmission mode, when thermal source splice, be difficult for realizing the exchange of position, and a large amount of buses is introduced in equipment is debug has increased the equipment use with the storage system maintenance aspect complexity.
ZigBee can realize point-to-point connection and complete ZigBee mesh network as a kind of novel radio procotol that is based upon on the IEEE 802.15.4 standard base.IEEE 802.15.4 standard is that low rate wireless personal area network (LR-WPAN) has defined two-layer that osi model begins.The PHY layer has defined the characteristic that less radio-frequency should possess, and it supports two kinds of different radiofrequency signals, lays respectively at 2450MHz wave band and 868/915MHz wave band.The 2450MHz waveband radio frequency can provide the data rate and 16 different channels of 250kbps.
The present invention is directed to based on the large-scale infrared standard thermal source of thermal source module splicing and debug and safeguard the difficulty aspect the storage at equipment; Proposed a kind of signal and discrete channel separation method of energy, effectively solved above problem based on the Zigbee wireless network communication.
Summary of the invention
The present invention introduces large-scale infrared standard thermal source communication control system with the Zigbee wireless network, and the channel separation of control signal passage and power delivery is opened.Package temperature controller, Zigbee wireless terminal (Zigbee wireless chip and wireless antenna), calibration power electricity input interface in the thermal source concatenation module.Form the Communication Control network by host computer, the wireless telegon of Zigbee, Zigbee wireless router, Zigbee wireless terminal.More than design has improved the interchangeability of thermal source module, has reduced system and has debug the complexity with the storage system maintenance aspect, has reduced the quantity of the construction of line in the system, and integrated and the modularization that helps system develops.
The mode of operation at network using telegon, router, terminal; Telegon is connected through serial communication with host computer; For increasing the telegon operating distance; Adopt the serial ports modular converter of RS232/RS422 in the middle of the serial communication of host computer and coordination, the telegon end is the RS422 standard, host computer be the RS232 standard.Along with the increase of thermal source module, can adopt the mode of operation at many group telegons, router, terminal.
Description of drawings
Fig. 1 thermal source modular structure figure
Fig. 2 system communication control structure figure
Fig. 3 final drive controlling output circuit figure
Fig. 4 MC13224 module pinout
Embodiment
Is example with the MC13224 chip of Freescale company as the master chip of the control system of Zigbee Radio infrared standard thermal source, explains as follows:
Like Fig. 1 and shown in Figure 2, system temperature control main body adopts the Zigbee2007 wireless network protocol, forms WLAN by a network coordinator and 72 network terminals (be encapsulated in the target group, each target group contains four the controllable target of independence units).The temperature control data, is sent to network coordinator through serial port by industrial computer, and by the target group of received, realizes the temperature control of each target unit of target group automatically by the temperature closed loop control system that is encapsulated in the target group.Be to strengthen the network transmission range, industrial computer is connected with serial ports between network coordinator and adopts RS232 and RS422 modular converter to transfer.Other each hardware is mainly above body of work and power supply and trouble free service guarantee are provided and design employing.
1) the temperature sampling module that constitutes by temperature sensor, transmitter, temperature signal sample circuit.
2) power output module that is made up of power amplification circuit, electric heater is realized the real time high-speed compensation of target unit working environment dissipated power is guaranteed temperature constant.Realize the stable output of thermal power (like Fig. 3) with pulse width modulation mode.
3) main control chip is gathered port except that having high-precision A/D, and the output port of High Speed I/O digital signal also should be arranged, and the supercomputing performance realizes the supercomputing of pid algorithm.In addition, this chip should have wireless Zigbee communication function (like Fig. 4, selecting suitable MC13224 module pin function according to actual needs).
Claims (3)
1. one kind large-scale infrared standard thermal source is characterized in that: realize thermal source concatenation module equipment by the Zigbee home control network communication protocol.
2. the large-scale infrared standard heat source system based on the Zigbee wireless network according to claim 1 is characterized in that: Zigbee temperature control terminal (like Fig. 1 and like Fig. 2) structure.
3. the large-scale infrared standard heat source system based on the Zigbee wireless network according to claim 1 is characterized in that: Zigbee temperature control communication structure (like Fig. 1 and like Fig. 2).
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| CN2011103243849A CN102520741A (en) | 2011-10-24 | 2011-10-24 | Constructed large-scale infrared standard heat source system based on Zigbee wireless network |
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| CN2011103243849A CN102520741A (en) | 2011-10-24 | 2011-10-24 | Constructed large-scale infrared standard heat source system based on Zigbee wireless network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932580A (en) * | 2015-05-04 | 2015-09-23 | 海南华磊建筑设计咨询有限公司 | Temperature control system and method |
Citations (4)
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| CN201314831Y (en) * | 2008-11-24 | 2009-09-23 | 浙江大学 | Wireless plant stem flow detection device based on hot laser pulse |
| US20100045470A1 (en) * | 2008-07-31 | 2010-02-25 | Araiza Steven P | Steam distribution control system and method for a steam heating system |
| CN201477433U (en) * | 2009-06-24 | 2010-05-19 | 乌鲁木齐利仁达科技有限公司 | Electric heating cluster control system |
| CN102129700A (en) * | 2011-03-11 | 2011-07-20 | 上海海事大学 | Infrared simulated image platform under ocean background and image generation method thereof |
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- 2011-10-24 CN CN2011103243849A patent/CN102520741A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100045470A1 (en) * | 2008-07-31 | 2010-02-25 | Araiza Steven P | Steam distribution control system and method for a steam heating system |
| CN201314831Y (en) * | 2008-11-24 | 2009-09-23 | 浙江大学 | Wireless plant stem flow detection device based on hot laser pulse |
| CN201477433U (en) * | 2009-06-24 | 2010-05-19 | 乌鲁木齐利仁达科技有限公司 | Electric heating cluster control system |
| CN102129700A (en) * | 2011-03-11 | 2011-07-20 | 上海海事大学 | Infrared simulated image platform under ocean background and image generation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932580A (en) * | 2015-05-04 | 2015-09-23 | 海南华磊建筑设计咨询有限公司 | Temperature control system and method |
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Application publication date: 20120627 |