CN202049375U - DSP (Digital Signal Processor)-based multi-interface real-time online monitoring device for frequency converter - Google Patents
DSP (Digital Signal Processor)-based multi-interface real-time online monitoring device for frequency converter Download PDFInfo
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Abstract
本实用新型公开了基于DSP的变频器多接口实时在线监控装置，电路连接上采用两种通信接口来完成变频器运行数据的输出与控制数据的读入，输入接口和输出接口包括CAN总线接口和工业以太网接口；两种通信接口，一个接口可以作为另一个接口的备用接口，也可以在高速数据传输中，将以太网接口作为变频器运行数据的输出接口，而将CAN总线接口作为上位机控制命令的传输接口分开使用，可以提高监控系统的可靠性和系统运行效率。本变频器实时在线监控装置的体积小，成本低，功耗低，实现多种接口的组合使用，具有抗干扰能力强，适应能力强，传输速度快和保密性能好等优点。
The utility model discloses a DSP-based multi-interface real-time on-line monitoring device for a frequency converter. The circuit connection adopts two kinds of communication interfaces to complete the output of the frequency converter's operating data and the reading of the control data. The input interface and output interface include CAN bus interface and Industrial Ethernet interface; two kinds of communication interfaces, one interface can be used as the backup interface of the other interface, or in high-speed data transmission, the Ethernet interface can be used as the output interface of the inverter operation data, and the CAN bus interface can be used as the upper computer The transmission interface of the control command is used separately, which can improve the reliability of the monitoring system and the operating efficiency of the system. The real-time on-line monitoring device of the frequency converter is small in size, low in cost, low in power consumption, realizes the combined use of various interfaces, and has the advantages of strong anti-interference ability, strong adaptability, fast transmission speed and good confidentiality performance.
Description
技术领域 technical field
本实用新型涉及实时在线监控装置技术，具体涉及一种CAN总线接口和工业以太网接口的变频器在线监控装置。The utility model relates to the technology of a real-time on-line monitoring device, in particular to a frequency converter on-line monitoring device with a CAN bus interface and an industrial Ethernet interface.
背景技术 Background technique
现有的变频器之间的组网技术虽然已有一定的发展，但是它们基本上都是采用基于RS485的现场总线网的通信，RS-485最大的通信距离约为1219M，最大传输速率为10Mb/S。RS-485采用半双工工作方式，支持多点数据通信，一般支持32个节点。RS-485虽然在通信距离上得到了提高，然而通信速率却成为了实时信号采集的“瓶颈”，这种网络难以组成更多控制节点和更远距离的在线监控系统，不能更好地满足系统的实时性要求，特别是在数据通信量大的系统中，通信速率慢而难以胜任；同时，在需要移动作业的场合中，由于传统的RS-232接口在许多笔记本电脑中已被逐步摒弃，使移动作业也变得越来越尴尬。Although the existing networking technology between frequency converters has been developed to a certain extent, they basically use RS485-based field bus network communication. The maximum communication distance of RS-485 is about 1219M, and the maximum transmission rate is 10Mb /S. RS-485 adopts half-duplex working mode, supports multi-point data communication, and generally supports 32 nodes. Although RS-485 has improved the communication distance, the communication rate has become the "bottleneck" of real-time signal acquisition. This kind of network is difficult to form more control nodes and longer-distance online monitoring systems, and cannot better meet the requirements of the system. Real-time requirements, especially in systems with a large amount of data communication, the communication rate is slow and difficult to meet; at the same time, in the occasions that require mobile operations, because the traditional RS-232 interface has been gradually abandoned in many notebook computers, Making mobile homework also increasingly awkward.
以太网(Ethernet)是由Xerox公司创建并由Xerox、Intel和DEC公司联合开发的基带局域网规范，是当今现有局域网采用的最通用的通信协议标准。以太网络使用CSMA/CD(载波监听多路访问及冲突检测)技术，并以10M/S的速率运行在多种类型的电缆上。以太网采用的CSMA/CD介质访问机制，它的优势在于站点无需依靠中心控制就能进行数据发送，当网络负荷较小的时候冲突很少发生，因此延迟低。此外，以太网支持Internet使用的TCP/IP协议，因而得到了飞速发展。以太网优越性主要体现在二个方面：一是以太网的传输速率从原先的10Mbps发展到100Mbps、1000Mbps，甚至更高；另一个方面就是其网络结构从最初的共享式向交换式发展。这些特点恰好满足了工业控制实时性要求。Ethernet (Ethernet) is a baseband LAN specification created by Xerox Corporation and jointly developed by Xerox, Intel, and DEC Corporation. It is the most common communication protocol standard used by existing LANs today. The Ethernet network uses CSMA/CD (Carrier Sense Multiple Access and Collision Detection) technology, and runs on various types of cables at a rate of 10M/S. The advantage of the CSMA/CD medium access mechanism adopted by Ethernet is that the station can send data without relying on the central control. When the network load is small, conflicts rarely occur, so the delay is low. In addition, Ethernet supports the TCP/IP protocol used by the Internet, and thus has developed rapidly. The superiority of Ethernet is mainly reflected in two aspects: one is that the transmission rate of Ethernet has developed from the original 10Mbps to 100Mbps, 1000Mbps, or even higher; the other aspect is that its network structure has developed from the original shared type to the switched type. These characteristics just meet the real-time requirements of industrial control.
发明内容 Contents of the invention
本实用新型的目的在于：为变频器实时在线控制提供两种接口，即CAN总线接口和工业以太网接口，适应不同场合的应用需求，作为变频器组网监控的工业控制系统使用。把变频器接入以太网或CAN总线网，使得系统的每个变频器不再工作于孤立的环境中，而是能够与监控计算机机相互交换信息，实现变频器参数的远程监测及变频器命令的发布，适应工业控制自动化的发展趋势。The purpose of the utility model is to provide two interfaces for real-time online control of frequency converters, that is, CAN bus interface and industrial Ethernet interface, to meet the application requirements of different occasions, and to be used as an industrial control system for network monitoring of frequency converters. Connect the frequency converter to the Ethernet or CAN bus network, so that each frequency converter in the system no longer works in an isolated environment, but can exchange information with the monitoring computer to realize remote monitoring of frequency converter parameters and frequency converter commands The release of , to adapt to the development trend of industrial control automation.
本实用新型的技术解决方案是：上位机配备了支持以太网接口和CAN总线接口通信的应用软件，可以向下位机发送运行控制命令，还可以通过RJ-45接口或CAN总线接口获得变频器的频率、电压、电流、故障信息等实时运行参数，并通过上位机显示界面进行显示。下位机是以TMS320F2812为核心的变频器，包括变频控制模块、CAN总线和工业以太网传输模块。核心芯片为TMS320F2812芯片，通过信号采集电路和内部数字信号处理程序将运算所得的重要数据存入指定存储区，用于与上位机数据交换。TMS320F2812芯片可以将实时信号处理能力和控制器外设功能集于一身，特别适合于工业控制应用。内核采用哈佛结构，运算速度块，最高可达150MIPS的执行速度；该芯片供电电压为3.3V，降低了控制器的功耗；片上有丰富的外设资源，并具有McBSP，SPI，SCI和扩展的CAN总线等接口，不同的片上标准通信端口可为主机、测试设备、显示器及其它组件提供简单方便的连接，价格低廉。这些优势使TMS320F2812基本上提供了整套的片上系统，同时降低了系统成本，实现了更简单、更高效和更经济的设计。下位机的变频控制模块通过核心芯片TMS320F2812产生六路PWM调制信号，达到控制电机的作用。核心芯片TMS320F2812向外扩展RTL8019AS网络芯片发送与接收数据，接收到的数据由TMS320F2812处理，并将实时运行参数发送到工业以太网上，由上位机经由RJ-45以太网接口或CAN总线接口的应用软件获得。下位机的工业以太网传输模块主要由TMS320F2812通过并行数据线与以太网控制芯片RTL8019AS相连，以太网控制芯片再通过隔离变压器HR61101G与RJ-45相连来实现以太网接口连接或通过TMS320F2812实现CAN总线接口总线连接。The technical solution of the utility model is: the upper computer is equipped with application software supporting Ethernet interface and CAN bus interface communication, which can send operation control commands to the lower computer, and can also obtain the frequency converter's information through the RJ-45 interface or CAN bus interface. Real-time operating parameters such as frequency, voltage, current, and fault information are displayed through the display interface of the host computer. The lower computer is a frequency converter with TMS320F2812 as the core, including frequency conversion control module, CAN bus and industrial Ethernet transmission module. The core chip is TMS320F2812 chip, through the signal acquisition circuit and the internal digital signal processing program, the important data obtained from the operation are stored in the designated storage area for data exchange with the host computer. The TMS320F2812 chip can integrate real-time signal processing capabilities and controller peripheral functions, and is especially suitable for industrial control applications. The kernel adopts the Harvard structure, the operation speed block, and the execution speed can reach up to 150MIPS; the power supply voltage of the chip is 3.3V, which reduces the power consumption of the controller; there are abundant peripheral resources on the chip, and it has McBSP, SPI, SCI and expansion CAN bus and other interfaces, different on-chip standard communication ports can provide simple and convenient connections for hosts, test equipment, displays and other components at low prices. These advantages enable the TMS320F2812 to basically provide a complete system-on-chip while reducing system cost and enabling a simpler, more efficient and more economical design. The frequency conversion control module of the lower computer generates six channels of PWM modulation signals through the core chip TMS320F2812 to achieve the function of controlling the motor. The core chip TMS320F2812 expands the RTL8019AS network chip to send and receive data, the received data is processed by TMS320F2812, and the real-time operation parameters are sent to the industrial Ethernet, and the host computer uses the application software via the RJ-45 Ethernet interface or the CAN bus interface get. The industrial Ethernet transmission module of the lower computer is mainly connected by TMS320F2812 to the Ethernet control chip RTL8019AS through parallel data lines, and the Ethernet control chip is connected to the RJ-45 through the isolation transformer HR61101G to realize the Ethernet interface connection or realize the CAN bus interface through TMS320F2812 bus connection.
本实用新型的变频器在线监控器包括U1部分、U2部分、U3部分和U4部分，U1部分、U2部分、U3部分和U4部分相互连接构成在线监控器的电路；U1部分以RTL8019AS为主，完成通过以太网接口的变频器运行参数与上位机控制指令的传输；U2部分以LVC16245为主，完成以太网接口、CAN总线接口与TMS320F2812芯片之间的电平转换；U3部分以HR61101G为主，完成以太网接口的信号变换与隔离；U4部分以PCA82C250为主，完成通过CAN总线接口的变频器运行参数与上位机控制指令的传输；其中，通信接口具体电路连接如下：The inverter on-line monitor of the present utility model comprises U1 part, U2 part, U3 part and U4 part, and U1 part, U2 part, U3 part and U4 part are connected with each other to form the circuit of on-line monitor; U1 part is based on RTL8019AS, completes The transmission of inverter operating parameters and host computer control commands through the Ethernet interface; the U2 part is mainly based on LVC16245 to complete the level conversion between the Ethernet interface, CAN bus interface and TMS320F2812 chip; the U3 part is mainly based on HR61101G and completed The signal conversion and isolation of the Ethernet interface; the U4 part is mainly PCA82C250, which completes the transmission of the inverter operating parameters and the control instructions of the upper computer through the CAN bus interface; the specific circuit connection of the communication interface is as follows:
U1部分(RTL8019AS)：U1 part (RTL8019AS):
RTL8019AS的第1引脚至第4引脚悬空；RTL8019AS的第4引脚连接到AT89S52的第12引脚；RTL8019AS的第5引脚连接到JP10的第1引脚；RTL8019AS的第6引脚接电源；RTL8019AS的第7引脚至第10引脚分别连接到JP10的第2引脚至第5引脚；RTL8019AS的第11引脚至第14引脚接地；RTL8019AS的第15引脚至第17引脚接电源；RTL8019AS的第18引脚至第28引脚接地；RTL8019AS的第29引脚连接到JP10的第8引脚；RTL8019AS的第30引脚连接到JP10的第9引脚；RTL8019AS的第31引脚和第32引脚接电源；RTL8019AS的第33引脚连接到R54的一端和JP10的第6引脚，R12另一端接电源；RTL8019AS的第34引脚连接到JP10的第7引脚；RTL8019AS的第35引脚悬空；RTL8019AS的第36、37引脚分别连接到LVC16245(1)的第2、3引脚；RTL8019AS的第38、39引脚分别连接到LVC16245(1)的第5、6引脚；RTL8019AS的第40、41引脚分别连接到LVC16245(1)的第8、9引脚；RTL8019AS的第42、43引脚分别连接到LVC16245(1)的第11、12引脚；RTL8019AS的第44引脚接地；RTL8019AS的第45引脚连接到HR61101G的第1引脚；RTL8019AS的第46引脚连接到HR61101G的第3引脚；RTL8019AS的第47引脚接电源；RTL8019AS的第48引脚和第49引脚悬空；RTL8019AS的第50引脚连接到Y3和C41的一端，Y3的另一端接C42的一端和RTL8019AS的第51引脚，C42和C41的另一端接地；RTL8019AS的第52引脚接地；RTL8019AS的第53引脚至第56引脚悬空；RTL8019AS的第57引脚接电源；RTL8019AS的第58引脚连接到R56的一端和HR61101G的第8引脚；RTL8019AS的第59引脚连接到R55的另一端和20F001N的第6引脚；RTL8019AS的第60引脚悬空；RTL8019AS的第61引脚连接到D18的负极，D18的正极接R60的一端，R60的另一端接电源；RTL8019AS的第62引脚连接到D17的负极，D17的正极接R59的一端，R59的另一端接电源；RTL8019AS的第64引脚悬空；RTL8019AS的第65引脚连接到R57的一端，R57的另一端接电源；RTL8019AS的第66引脚至第69引脚悬空；RTL8019AS的第70引脚接电源；RTL8019AS的第71引脚至第82引脚悬空；RTL8019AS的第83引脚接地；RTL8019AS的第84引脚至第85引脚悬空；RTL8019AS的第86引脚接地；RTL8019AS的第87引脚和第88引脚分别连接到LVC16245(1)的第23引脚和第22引脚；RTL8019AS的第89引脚接电源；RTL8019AS的第90引脚和第91引脚分别连接到LVC16245(1)的第20引脚和第19引脚；RTL8019AS的第92引脚和第93引脚分别连接到LVC16245(1)的第17引脚和第16引脚；RTL8019AS的第94引脚和第95引脚分别连接到LVC16245(1)的第14引脚和第13引脚；RTL8019AS的第96引脚连接到R53的一端，R53的另一端接电源；RTL8019AS的第97引脚至第100引脚悬空；The 1st to 4th pins of RTL8019AS are suspended; the 4th pin of RTL8019AS is connected to the 12th pin of AT89S52; the 5th pin of RTL8019AS is connected to the 1st pin of JP10; the 6th pin of RTL8019AS is connected to Power supply; the 7th to 10th pins of RTL8019AS are respectively connected to the 2nd to 5th pins of JP10; the 11th to 14th pins of RTL8019AS are grounded; the 15th to 17th pins of RTL8019AS The pin is connected to the power supply; the 18th to 28th pins of RTL8019AS are grounded; the 29th pin of RTL8019AS is connected to the 8th pin of JP10; the 30th pin of RTL8019AS is connected to the 9th pin of JP10; the RTL8019AS’s The 31st and 32nd pins are connected to the power supply; the 33rd pin of RTL8019AS is connected to one end of R54 and the 6th pin of JP10, and the other end of R12 is connected to the power supply; the 34th pin of RTL8019AS is connected to the 7th pin of JP10 pin; the 35th pin of RTL8019AS is suspended; the 36th and 37th pins of RTL8019AS are respectively connected to the 2nd and 3rd pins of LVC16245(1); the 38th and 39th pins of RTL8019AS are respectively connected to the first 5 and 6 pins; the 40th and 41st pins of RTL8019AS are respectively connected to the 8th and 9th pins of LVC16245(1); the 42nd and 43rd pins of RTL8019AS are respectively connected to the 11th and 12th pins of LVC16245(1) pin; the 44th pin of RTL8019AS is grounded; the 45th pin of RTL8019AS is connected to the first pin of HR61101G; the 46th pin of RTL8019AS is connected to the third pin of HR61101G; the 47th pin of RTL8019AS is connected to the power supply; RTL8019AS The 48th and 49th pins of RTL8019AS are suspended; the 50th pin of RTL8019AS is connected to one end of Y3 and C41, the other end of Y3 is connected to one end of C42 and the 51st pin of RTL8019AS, and the other end of C42 and C41 is grounded; The 52nd pin of RTL8019AS is grounded; the 53rd to 56th pins of RTL8019AS are suspended; the 57th pin of RTL8019AS is connected to the power supply; the 58th pin of RTL8019AS is connected to one end of R56 and the 8th pin of HR61101G; RTL8019AS The 59th pin of RTL8019AS is connected to the other end of R55 and the 6th pin of 20F001N; the 60th pin of RTL8019AS is suspended; the 61st pin of RTL8019AS is connected to the negative pole of D18, the positive pole of D18 is connected to one end of R60, and the other end of R60 One end is connected to the power supply; the 62nd pin of RTL8019AS is connected to the negative pole of D17, the positive pole of D17 is connected to one end of R59, and the The other end is connected to the power supply; the 64th pin of RTL8019AS is suspended; the 65th pin of RTL8019AS is connected to one end of R57, and the other end of R57 is connected to the power supply; the 66th to 69th pins of RTL8019AS are suspended; the 70th pin of RTL8019AS The pin is connected to the power supply; the 71st to 82nd pins of RTL8019AS are suspended; the 83rd pin of RTL8019AS is grounded; the 84th to 85th pins of RTL8019AS are suspended; the 86th pin of RTL8019AS is grounded; the 87th pin of RTL8019AS Pin and pin 88 are respectively connected to pin 23 and
U2部分(LVC16245)：U2 part (LVC16245):
LVC16245(1)的第1引脚连接到R43的一端，R43的另一端分别接电源和C40，C40的另一端接地；LVC16245(1)的第2、3引脚分别连接到RTL8019AS的第36、37引脚；LVC16245(1)的第4引脚接地；LVC16245(1)的第5、6引脚分别连接到RTL8019AS的第38、39引脚；LVC16245(1)的第7引脚连接到LVC16245(1)的第18引脚；LVC16245(1)的第8、9引脚分别连接到RTL8019AS的第40、41引脚；LVC16245(1)的第10引脚接地；LVC16245(1)的第11、12引脚分别连接到RTL8019AS的第42、43引脚；LVC16245(1)的第13、14引脚和RTL8019AS的第95引脚和第94引脚；LVC16245(1)的第15引脚接地；LVC16245(1)的第16、17引脚和RTL8019AS的第93引脚和第92引脚；LVC16245(1)的第18引脚分别连接到LVC16245(1)的第42引脚和C40一端，C40的另一端接地；LVC16245(1)的第19、20引脚分别接RTL8019AS的第91引脚和第90引脚；LVC16245(1)的第21引脚接地；LVC16245(1)的第22、23引脚RTL8019AS的第88引脚和第87引脚；LVC16245(1)的第24引脚分别连接到LVC16245(1)的第1引脚和R43；LVC16245(1)的第25引脚接地；LVC16245(1)的第26、27引脚分别接TMS320F2812的第147引脚和第139引脚；LVC16245(1)的第28引脚接地；LVC16245(1)的第29、30引脚分别接TMS320F2812的第97引脚和第96引脚；LVC16245(1)的第31引脚连接到LVC16245(1)的第42引脚；LVC16245(1)的第32、33引脚分别接TMS320F2812的第74引脚和第73引脚；LVC16245(1)的第34引脚接地；LVC16245(1)的第35、36、37、38引脚分别接TMS320F2812的第68、65、54、39引脚；LVC16245(1)的第39引脚接地；LVC16245(1)的第40、41引脚分别接TMS320F2812的第36引脚和第33引脚；LVC16245(1)的第42引脚连接到LVC16245(1)的第18引脚；LVC16245(1)的第43、44引脚分别接TMS320F2812的第30引脚和第27引脚；LVC16245(1)的第45引脚接地；LVC16245(1)的第46、47引脚分别接TMS320F2812的第24引脚和第22引脚；LVC16245(1)的第48引脚接地；The first pin of LVC16245(1) is connected to one end of R43, the other end of R43 is respectively connected to the power supply and C40, and the other end of C40 is grounded; the second and third pins of LVC16245(1) are connected to the 36th and 3rd pins of RTL8019AS respectively. 37 pins; the 4th pin of LVC16245(1) is grounded; the 5th and 6th pins of LVC16245(1) are connected to the 38th and 39th pins of RTL8019AS respectively; the 7th pin of LVC16245(1) is connected to LVC16245 The 18th pin of (1); the 8th and 9th pins of LVC16245(1) are respectively connected to the 40th and 41st pins of RTL8019AS; the 10th pin of LVC16245(1) is grounded; the 11th pin of LVC16245(1) 12 pins are respectively connected to the 42nd and 43rd pins of RTL8019AS; the 13th and 14th pins of LVC16245(1) and the 95th and 94th pins of RTL8019AS; the 15th pin of LVC16245(1) is grounded ; The 16th and 17th pins of LVC16245(1) and the 93rd and 92nd pins of RTL8019AS; the 18th pins of LVC16245(1) are respectively connected to the 42nd pin of LVC16245(1) and one end of C40, The other end of C40 is grounded; the 19th and 20th pins of LVC16245(1) are respectively connected to the 91st and 90th pins of RTL8019AS; the 21st pin of LVC16245(1) is grounded; the 22nd and 20th pins of LVC16245(1) The 88th pin and the 87th pin of the 23-pin RTL8019AS; the 24th pin of the LVC16245(1) are respectively connected to the 1st pin of the LVC16245(1) and R43; the 25th pin of the LVC16245(1) is grounded; The 26th and 27th pins of LVC16245(1) are respectively connected to the 147th and 139th pins of TMS320F2812; the 28th pin of LVC16245(1) is grounded; the 29th and 30th pins of LVC16245(1) are respectively connected to TMS320F2812 The 97th pin and the 96th pin of the LVC16245(1) are connected to the 42nd pin of the LVC16245(1); the 32nd and 33rd pins of the LVC16245(1) are respectively connected to the 74th pin of the TMS320F2812 Pin and pin 73;
LVC16245(2)的第1引脚连接到R31的一端，R31的另一端分别接电源和C31，C31的另一端接地；LVC16245(2)的第2、3引脚悬空；LVC16245(2)的第4引脚接地；LVC16245(1)的第5、6引脚悬空；LVC16245(2)的第7引脚连接到LVC16245(2)的第18引脚；LVC16245(2)的第8、9引脚悬空；LVC16245(2)的第10引脚接地；LVC16245(2)的第11、12引脚悬空；LVC16245(2)的第13、14引脚悬空；LVC16245(2)的第15引脚接地；LVC16245(2)的第16、17引脚悬空；LVC16245(2)的第18引脚分别连接到LVC16245(2)的第42引脚和C31一端，C31的另一端接地；LVC16245(2)的第19、20引脚悬空；LVC16245(2)的第21引脚接地；LVC16245(2)的第22、23引脚PCA82C250的第1引脚和第4引脚；LVC16245(2)的第24引脚分别连接到LVC16245(2)的第1引脚和R31；LVC16245(2)的第25引脚接地；LVC16245(2)的第26、27引脚分别接TMS320F2812的第89引脚和第87引脚；LVC16245(2)的第28引脚接地；LVC16245(2)的第29、30引脚悬空；LVC16245(2)的第31引脚连接到LVC16245(2)的第42引脚；LVC16245(2)的第32、33引脚悬空；LVC16245(2)的第34引脚接地；LVC16245(2)的第35、36、37、38引脚悬空；LVC16245(2)的第39引脚接地；LVC16245(2)的第40、41引脚悬空；LVC16245(2)的第42引脚连接到LVC16245(2)的第18引脚；LVC16245(2)的第43、44引脚悬空；LVC16245(2)的第45引脚接地；LVC16245(2)的第46、47引脚分别接TMS320F2812的第24引脚和第22引脚；LVC16245(2)的第48引脚接地；The first pin of LVC16245(2) is connected to one end of R31, the other end of R31 is respectively connected to the power supply and C31, and the other end of C31 is grounded; the second and third pins of LVC16245(2) are suspended; the second end of LVC16245(2) 4 pins are grounded; the 5th and 6th pins of LVC16245(1) are floating; the 7th pin of LVC16245(2) is connected to the 18th pin of LVC16245(2); the 8th and 9th pins of LVC16245(2) Suspended; the 10th pin of LVC16245(2) is grounded; the 11th and 12th pins of LVC16245(2) are suspended; the 13th and 14th pins of LVC16245(2) are suspended; the 15th pin of LVC16245(2) is grounded; The 16th and 17th pins of LVC16245(2) are suspended; the 18th pins of LVC16245(2) are respectively connected to the 42nd pin of LVC16245(2) and one end of C31, and the other end of C31 is grounded; the first end of LVC16245(2)
U3部分(HR61101G)：U3 part (HR61101G):
HR61101G的第1引脚连接到RTL8019AS的第45引脚和C47，C47的另一端接地；HR61101G的第2引脚连接到C43的一端，C43的另一端接地；HR61101G的第3引脚连接到RTL8019AS的第46引脚和C48，C48的另一端接地；HR61101G的第4、5引脚悬空；HR61101G的第6引脚连接到R55的一端和RTL8019AS的第59引脚，R55的另一端接C49的一端，C49的另一端接地；HR61101G的第7引脚连接到C45的一端，C45的另一端接地；HR61101G的第8引脚连接到R56的一端和RTL8019AS的第59引脚，R56的另一端接C49的一端，C49的另一端接地；HR61101G的第9引脚连接到RJ45的第6引脚；HR61101G的第10引脚连接到C46的一端，C46的另一端接地；HR61101G的第11引脚连接到RJ45的第3引脚；HR61101G的第12、13引脚悬空；HR61101G的第14引脚连接到RJ45的第2引脚；HR61101G的第15引脚连接到C44的一端，C44的另一端接地；HR61101G的第16引脚连接到RJ45的第1引脚；RJ45的4、5引脚互连；RJ45的7、8引脚互连。The first pin of HR61101G is connected to the 45th pin of RTL8019AS and C47, and the other end of C47 is grounded; the second pin of HR61101G is connected to one end of C43, and the other end of C43 is grounded; the third pin of HR61101G is connected to RTL8019AS The 46th pin of HR61101G and C48, the other end of C48 is grounded; the 4th and 5th pins of HR61101G are suspended; the 6th pin of HR61101G is connected to one end of R55 and the 59th pin of RTL8019AS, and the other end of R55 is connected to C49 One end, the other end of C49 is grounded; the 7th pin of HR61101G is connected to one end of C45, and the other end of C45 is grounded; the 8th pin of HR61101G is connected to one end of R56 and the 59th pin of RTL8019AS, and the other end of R56 is connected to One end of C49, the other end of C49 is grounded; the 9th pin of HR61101G is connected to the 6th pin of RJ45; the 10th pin of HR61101G is connected to one end of C46, the other end of C46 is grounded; the 11th pin of HR61101G is connected to To the third pin of RJ45; the 12th and 13th pins of HR61101G are suspended; the 14th pin of HR61101G is connected to the second pin of RJ45; the 15th pin of HR61101G is connected to one end of C44, and the other end of C44 is grounded ; The 16th pin of HR61101G is connected to the 1st pin of RJ45; the 4 and 5 pins of RJ45 are interconnected; the 7 and 8 pins of RJ45 are interconnected.
U4部分(PCA82C250)：U4 part (PCA82C250):
PCA82C250的第1引脚连接到LVC16245的第22引脚和R40的一端，R40的另一端接电源；PCA82C250的第2引脚接地；PCA82C250的第3引脚连接到C35的一端，C35的另一端接地；PCA82C250的第4引脚连接到LVC16245的第23引脚和R39的一端，R39的另一端接电源；PCA82C250的第5引脚悬空；PCA82C250的第6引脚连接到JP3的第3引脚和R42的一端，R42的另一端连接到JP3的第2引脚；PCA82C250的第7引脚连接到JP3的第2引脚和R42的一端，R42的另一端连接到JP3的第3引脚；PCA82C250的第8引脚连接到R41的一端，R41的另一端接地。The first pin of PCA82C250 is connected to the 22nd pin of LVC16245 and one end of R40, the other end of R40 is connected to the power supply; the second pin of PCA82C250 is grounded; the third pin of PCA82C250 is connected to one end of C35, and the other end of C35 Ground; the 4th pin of PCA82C250 is connected to the 23rd pin of LVC16245 and one end of R39, the other end of R39 is connected to the power supply; the 5th pin of PCA82C250 is floating; the 6th pin of PCA82C250 is connected to the 3rd pin of JP3 and one end of R42, the other end of R42 is connected to the 2nd pin of JP3; the 7th pin of PCA82C250 is connected to the 2nd pin of JP3 and one end of R42, and the other end of R42 is connected to the 3rd pin of JP3; The 8th pin of PCA82C250 is connected to one end of R41, and the other end of R41 is grounded.
其中，本实用新型的电路上连接两种通信接口来完成变频器运行数据的输出与控制数据的读入，输入接口和输出接口包括CAN总线接口和RJ45接口。Wherein, two kinds of communication interfaces are connected to the circuit of the utility model to complete the output of the inverter operation data and the reading of the control data, and the input interface and the output interface include CAN bus interface and RJ45 interface.
本实用新型具有以下优点：1、具有两种通信接口，一个接口可以作为另一个接口的备用接口，也可以在高速数据传输中，将以太网接口作为变频器运行数据的输出接口，而将CAN总线接口作为上位机控制命令的传输接口分开使用，这样可以提高监控系统的可靠性和系统运行效率。The utility model has the following advantages: 1. There are two kinds of communication interfaces, one interface can be used as the spare interface of the other interface, and the Ethernet interface can be used as the output interface of the inverter operation data in high-speed data transmission, while the CAN The bus interface is used separately as the transmission interface of the upper computer control command, which can improve the reliability and system operation efficiency of the monitoring system.
2、本变频器在线控制器的体积小，成本低，功耗低，实现多种接口的组合使用，具有抗干扰能力强，适应能力强，传输速度快和保密性能好等优点。2. The on-line controller of the frequency converter is small in size, low in cost, low in power consumption, realizes the combined use of various interfaces, and has the advantages of strong anti-interference ability, strong adaptability, fast transmission speed and good confidentiality performance.
附图说明 Description of drawings
图1为本实用新型的接口电路原理图；Fig. 1 is the schematic diagram of the interface circuit of the present utility model;
图2为变频器结构框图，由主控芯片TMS320F2812、网络接口、模拟量输入通道、按键电路、LED显示电路、电源模块等组成。Figure 2 is a structural block diagram of the inverter, which is composed of the main control chip TMS320F2812, network interface, analog input channel, key circuit, LED display circuit, power module and so on.
具体实施方式 Detailed ways
下面结合附图进一步说明本实用新型的技术解决方案。Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing.
如图1所示，读写器包括U1部分、U2部分、U3部分和U4部分，U1部分、U2部分、U3部分和U4部分相互连接构成在线监控器的通信接口电路，其中，具体通信接口电路连接如下：As shown in Figure 1, the reader includes a U1 part, a U2 part, a U3 part and a U4 part, and the U1 part, the U2 part, the U3 part and the U4 part are connected to each other to form a communication interface circuit of the online monitor, wherein the specific communication interface circuit The connections are as follows:
U1部分(RTL8019AS)：U1 part (RTL8019AS):
RTL8019AS的第1引脚至第4引脚悬空；RTL8019AS的第4引脚连接到AT89S52的第12引脚；RTL8019AS的第5引脚连接到JP10的第1引脚；RTL8019AS的第6引脚接电源；RTL8019AS的第7引脚至第10引脚分别连接到JP10的第2引脚至第5引脚；RTL8019AS的第11引脚至第14引脚接地；RTL8019AS的第15引脚至第17引脚接电源；RTL8019AS的第18引脚至第28引脚接地；RTL8019AS的第29引脚连接到JP10的第8引脚；RTL8019AS的第30引脚连接到JP10的第9引脚；RTL8019AS的第31引脚和第32引脚接电源；RTL8019AS的第33引脚连接到R54的一端和JP10的第6引脚，R12另一端接电源；RTL8019AS的第34引脚连接到JP10的第7引脚；RTL8019AS的第35引脚悬空；RTL8019AS的第36、37引脚分别连接到LVC16245(1)的第2、3引脚；RTL8019AS的第38、39引脚分别连接到LVC16245(1)的第5、6引脚；RTL8019AS的第40、41引脚分别连接到LVC16245(1)的第8、9引脚；RTL8019AS的第42、43引脚分别连接到LVC16245(1)的第11、12引脚；RTL8019AS的第44引脚接地；RTL8019AS的第45引脚连接到HR61101G的第1引脚；RTL8019AS的第46引脚连接到HR61101G的第3引脚；RTL8019AS的第47引脚接电源；RTL8019AS的第48引脚和第49引脚悬空；RTL8019AS的第50引脚连接到Y3和C41的一端，Y3的另一端接C42的一端和RTL8019AS的第51引脚，C42和C41的另一端接地；RTL8019AS的第52引脚接地；RTL8019AS的第53引脚至第56引脚悬空；RTL8019AS的第57引脚接电源；RTL8019AS的第58引脚连接到R56的一端和HR61101G的第8引脚；RTL8019AS的第59引脚连接到R55的另一端和20F001N的第6引脚；RTL8019AS的第60引脚悬空；RTL8019AS的第61引脚连接到D18的负极，D18的正极接R60的一端，R60的另一端接电源；RTL8019AS的第62引脚连接到D17的负极，D17的正极接R59的一端，R59的另一端接电源；RTL8019AS的第64引脚悬空；RTL8019AS的第65引脚连接到R57的一端，R57的另一端接电源；RTL8019AS的第66引脚至第69引脚悬空；RTL8019AS的第70引脚接电源；RTL8019AS的第71引脚至第82引脚悬空；RTL8019AS的第83引脚接地；RTL8019AS的第84引脚至第85引脚悬空；RTL8019AS的第86引脚接地；RTL8019AS的第87引脚和第88引脚分别连接到LVC16245(1)的第23引脚和第22引脚；RTL8019AS的第89引脚接电源；RTL8019AS的第90引脚和第91引脚分别连接到LVC16245(1)的第20引脚和第19引脚；RTL8019AS的第92引脚和第93引脚分别连接到LVC16245(1)的第17引脚和第16引脚；RTL8019AS的第94引脚和第95引脚分别连接到LVC16245(1)的第14引脚和第13引脚；RTL8019AS的第96引脚连接到R53的一端，R53的另一端接电源；RTL8019AS的第97引脚至第100引脚悬空；The 1st to 4th pins of RTL8019AS are suspended; the 4th pin of RTL8019AS is connected to the 12th pin of AT89S52; the 5th pin of RTL8019AS is connected to the 1st pin of JP10; the 6th pin of RTL8019AS is connected to Power supply; the 7th to 10th pins of RTL8019AS are respectively connected to the 2nd to 5th pins of JP10; the 11th to 14th pins of RTL8019AS are grounded; the 15th to 17th pins of RTL8019AS The pin is connected to the power supply; the 18th to 28th pins of RTL8019AS are grounded; the 29th pin of RTL8019AS is connected to the 8th pin of JP10; the 30th pin of RTL8019AS is connected to the 9th pin of JP10; the RTL8019AS’s The 31st and 32nd pins are connected to the power supply; the 33rd pin of RTL8019AS is connected to one end of R54 and the 6th pin of JP10, and the other end of R12 is connected to the power supply; the 34th pin of RTL8019AS is connected to the 7th pin of JP10 pin; the 35th pin of RTL8019AS is suspended; the 36th and 37th pins of RTL8019AS are respectively connected to the 2nd and 3rd pins of LVC16245(1); the 38th and 39th pins of RTL8019AS are respectively connected to the first 5 and 6 pins; the 40th and 41st pins of RTL8019AS are respectively connected to the 8th and 9th pins of LVC16245(1); the 42nd and 43rd pins of RTL8019AS are respectively connected to the 11th and 12th pins of LVC16245(1) pin; the 44th pin of RTL8019AS is grounded; the 45th pin of RTL8019AS is connected to the first pin of HR61101G; the 46th pin of RTL8019AS is connected to the third pin of HR61101G; the 47th pin of RTL8019AS is connected to the power supply; RTL8019AS The 48th and 49th pins of RTL8019AS are suspended; the 50th pin of RTL8019AS is connected to one end of Y3 and C41, the other end of Y3 is connected to one end of C42 and the 51st pin of RTL8019AS, and the other end of C42 and C41 is grounded; The 52nd pin of RTL8019AS is grounded; the 53rd to 56th pins of RTL8019AS are suspended; the 57th pin of RTL8019AS is connected to the power supply; the 58th pin of RTL8019AS is connected to one end of R56 and the 8th pin of HR61101G; RTL8019AS The 59th pin of RTL8019AS is connected to the other end of R55 and the 6th pin of 20F001N; the 60th pin of RTL8019AS is suspended; the 61st pin of RTL8019AS is connected to the negative pole of D18, the positive pole of D18 is connected to one end of R60, and the other end of R60 One end is connected to the power supply; the 62nd pin of RTL8019AS is connected to the negative pole of D17, the positive pole of D17 is connected to one end of R59, and the The other end is connected to the power supply; the 64th pin of RTL8019AS is suspended; the 65th pin of RTL8019AS is connected to one end of R57, and the other end of R57 is connected to the power supply; the 66th to 69th pins of RTL8019AS are suspended; the 70th pin of RTL8019AS The pin is connected to the power supply; the 71st to 82nd pins of RTL8019AS are suspended; the 83rd pin of RTL8019AS is grounded; the 84th to 85th pins of RTL8019AS are suspended; the 86th pin of RTL8019AS is grounded; the 87th pin of RTL8019AS Pin and pin 88 are respectively connected to pin 23 and
U2部分(LVC16245)：U2 part (LVC16245):
LVC16245(1)的第1引脚连接到R43的一端，R43的另一端分别接电源和C40，C40的另一端接地；LVC16245(1)的第2、3引脚分别连接到RTL8019AS的第36、37引脚；LVC16245(1)的第4引脚接地；LVC16245(1)的第5、6引脚分别连接到RTL8019AS的第38、39引脚；LVC16245(1)的第7引脚连接到LVC16245(1)的第18引脚；LVC16245(1)的第8、9引脚分别连接到RTL8019AS的第40、41引脚；LVC16245(1)的第10引脚接地；LVC16245(1)的第11、12引脚分别连接到RTL8019AS的第42、43引脚；LVC16245(1)的第13、14引脚和RTL8019AS的第95引脚和第94引脚；LVC16245(1)的第15引脚接地；LVC16245(1)的第16、17引脚和RTL8019AS的第93引脚和第92引脚；LVC16245(1)的第18引脚分别连接到LVC16245(1)的第42引脚和C40一端，C40的另一端接地；LVC16245(1)的第19、20引脚分别接RTL8019AS的第91引脚和第90引脚；LVC16245(1)的第21引脚接地；LVC16245(1)的第22、23引脚RTL8019AS的第88引脚和第87引脚；LVC16245(1)的第24引脚分别连接到LVC16245(1)的第1引脚和R43；LVC16245(1)的第25引脚接地；LVC16245(1)的第26、27引脚分别接TMS320F2812的第147引脚和第139引脚；LVC16245(1)的第28引脚接地；LVC16245(1)的第29、30引脚分别接TMS320F2812的第97引脚和第96引脚；LVC16245(1)的第31引脚连接到LVC16245(1)的第42引脚；LVC16245(1)的第32、33引脚分别接TMS320F2812的第74引脚和第73引脚；LVC16245(1)的第34引脚接地；LVC16245(1)的第35、36、37、38引脚分别接TMS320F2812的第68、65、54、39引脚；LVC16245(1)的第39引脚接地；LVC16245(1)的第40、41引脚分别接TMS320F2812的第36引脚和第33引脚；LVC16245(1)的第42引脚连接到LVC16245(1)的第18引脚；LVC16245(1)的第43、44引脚分别接TMS320F2812的第30引脚和第27引脚；LVC16245(1)的第45引脚接地；LVC16245(1)的第46、47引脚分别接TMS320F2812的第24引脚和第22引脚；LVC16245(1)的第48引脚接地；The first pin of LVC16245(1) is connected to one end of R43, the other end of R43 is respectively connected to the power supply and C40, and the other end of C40 is grounded; the second and third pins of LVC16245(1) are connected to the 36th and 3rd pins of RTL8019AS respectively. 37 pins; the 4th pin of LVC16245(1) is grounded; the 5th and 6th pins of LVC16245(1) are connected to the 38th and 39th pins of RTL8019AS respectively; the 7th pin of LVC16245(1) is connected to LVC16245 The 18th pin of (1); the 8th and 9th pins of LVC16245(1) are respectively connected to the 40th and 41st pins of RTL8019AS; the 10th pin of LVC16245(1) is grounded; the 11th pin of LVC16245(1) 12 pins are respectively connected to the 42nd and 43rd pins of RTL8019AS; the 13th and 14th pins of LVC16245(1) and the 95th and 94th pins of RTL8019AS; the 15th pin of LVC16245(1) is grounded ; The 16th and 17th pins of LVC16245(1) and the 93rd and 92nd pins of RTL8019AS; the 18th pins of LVC16245(1) are respectively connected to the 42nd pin of LVC16245(1) and one end of C40, The other end of C40 is grounded; the 19th and 20th pins of LVC16245(1) are respectively connected to the 91st and 90th pins of RTL8019AS; the 21st pin of LVC16245(1) is grounded; the 22nd and 20th pins of LVC16245(1) The 88th pin and the 87th pin of the 23-pin RTL8019AS; the 24th pin of the LVC16245(1) are respectively connected to the 1st pin of the LVC16245(1) and R43; the 25th pin of the LVC16245(1) is grounded; The 26th and 27th pins of LVC16245(1) are respectively connected to the 147th and 139th pins of TMS320F2812; the 28th pin of LVC16245(1) is grounded; the 29th and 30th pins of LVC16245(1) are respectively connected to TMS320F2812 The 97th pin and the 96th pin of the LVC16245(1) are connected to the 42nd pin of the LVC16245(1); the 32nd and 33rd pins of the LVC16245(1) are respectively connected to the 74th pin of the TMS320F2812 Pin and pin 73;
LVC16245(2)的第1引脚连接到R31的一端，R31的另一端分别接电源和C31，C31的另一端接地；LVC16245(2)的第2、3引脚悬空；LVC16245(2)的第4引脚接地；LVC16245(1)的第5、6引脚悬空；LVC16245(2)的第7引脚连接到LVC16245(2)的第18引脚；LVC16245(2)的第8、9引脚悬空；LVC16245(2)的第10引脚接地；LVC16245(2)的第11、12引脚悬空；LVC16245(2)的第13、14引脚悬空；LVC16245(2)的第15引脚接地；LVC16245(2)的第16、17引脚悬空；LVC16245(2)的第18引脚分别连接到LVC16245(2)的第42引脚和C31一端，C31的另一端接地；LVC16245(2)的第19、20引脚悬空；LVC16245(2)的第21引脚接地；LVC16245(2)的第22、23引脚PCA82C250的第1引脚和第4引脚；LVC16245(2)的第24引脚分别连接到LVC16245(2)的第1引脚和R31；LVC16245(2)的第25引脚接地；LVC16245(2)的第26、27引脚分别接TMS320F2812的第89引脚和第87引脚；LVC16245(2)的第28引脚接地；LVC16245(2)的第29、30引脚悬空；LVC16245(2)的第31引脚连接到LVC16245(2)的第42引脚；LVC16245(2)的第32、33引脚悬空；LVC16245(2)的第34引脚接地；LVC16245(2)的第35、36、37、38引脚悬空；LVC16245(2)的第39引脚接地；LVC16245(2)的第40、41引脚悬空；LVC16245(2)的第42引脚连接到LVC16245(2)的第18引脚；LVC16245(2)的第43、44引脚悬空；LVC16245(2)的第45引脚接地；LVC16245(2)的第46、47引脚分别接TMS320F2812的第24引脚和第22引脚；LVC16245(2)的第48引脚接地；The first pin of LVC16245(2) is connected to one end of R31, the other end of R31 is respectively connected to the power supply and C31, and the other end of C31 is grounded; the second and third pins of LVC16245(2) are suspended; the second end of LVC16245(2) 4 pins are grounded; the 5th and 6th pins of LVC16245(1) are floating; the 7th pin of LVC16245(2) is connected to the 18th pin of LVC16245(2); the 8th and 9th pins of LVC16245(2) Suspended; the 10th pin of LVC16245(2) is grounded; the 11th and 12th pins of LVC16245(2) are suspended; the 13th and 14th pins of LVC16245(2) are suspended; the 15th pin of LVC16245(2) is grounded; The 16th and 17th pins of LVC16245(2) are suspended; the 18th pins of LVC16245(2) are respectively connected to the 42nd pin of LVC16245(2) and one end of C31, and the other end of C31 is grounded; the first end of LVC16245(2)
U3部分(HR61101G)：U3 part (HR61101G):
HR61101G的第1引脚连接到RTL8019AS的第45引脚和C47，C47的另一端接地；HR61101G的第2引脚连接到C43的一端，C43的另一端接地；HR61101G的第3引脚连接到RTL8019AS的第46引脚和C48，C48的另一端接地；HR61101G的第4、5引脚悬空；HR61101G的第6引脚连接到R55的一端和RTL8019AS的第59引脚，R55的另一端接C49的一端，C49的另一端接地；HR61101G的第7引脚连接到C45的一端，C45的另一端接地；HR61101G的第8引脚连接到R56的一端和RTL8019AS的第59引脚，R56的另一端接C49的一端，C49的另一端接地；HR61101G的第9引脚连接到RJ45的第6引脚；HR61101G的第10引脚连接到C46的一端，C46的另一端接地；HR61101G的第11引脚连接到RJ45的第3引脚；HR61101G的第12、13引脚悬空；HR61101G的第14引脚连接到RJ45的第2引脚；HR61101G的第15引脚连接到C44的一端，C44的另一端接地；HR61101G的第16引脚连接到RJ45的第1引脚；RJ45的4、5引脚互连；RJ45的7、8引脚互连。The first pin of HR61101G is connected to the 45th pin of RTL8019AS and C47, and the other end of C47 is grounded; the second pin of HR61101G is connected to one end of C43, and the other end of C43 is grounded; the third pin of HR61101G is connected to RTL8019AS The 46th pin of HR61101G and C48, the other end of C48 is grounded; the 4th and 5th pins of HR61101G are suspended; the 6th pin of HR61101G is connected to one end of R55 and the 59th pin of RTL8019AS, and the other end of R55 is connected to C49 One end, the other end of C49 is grounded; the 7th pin of HR61101G is connected to one end of C45, and the other end of C45 is grounded; the 8th pin of HR61101G is connected to one end of R56 and the 59th pin of RTL8019AS, and the other end of R56 is connected to One end of C49, the other end of C49 is grounded; the 9th pin of HR61101G is connected to the 6th pin of RJ45; the 10th pin of HR61101G is connected to one end of C46, the other end of C46 is grounded; the 11th pin of HR61101G is connected to To the third pin of RJ45; the 12th and 13th pins of HR61101G are suspended; the 14th pin of HR61101G is connected to the second pin of RJ45; the 15th pin of HR61101G is connected to one end of C44, and the other end of C44 is grounded ; The 16th pin of HR61101G is connected to the 1st pin of RJ45; the 4 and 5 pins of RJ45 are interconnected; the 7 and 8 pins of RJ45 are interconnected.
U4部分(PCA82C250)：U4 part (PCA82C250):
PCA82C250的第1引脚连接到LVC16245的第22引脚和R40的一端，R40的另一端接电源；PCA82C250的第2引脚接地；PCA82C250的第3引脚连接到C35的一端，C35的另一端接地；PCA82C250的第4引脚连接到LVC16245的第23引脚和R39的一端，R39的另一端接电源；PCA82C250的第5引脚悬空；PCA82C250的第6引脚连接到JP3的第3引脚和R42的一端，R42的另一端连接到JP3的第2引脚；PCA82C250的第7引脚连接到JP3的第2引脚和R42的一端，R42的另一端连接到JP3的第3引脚；PCA82C250的第8引脚连接到R41的一端，R41的另一端接地。The first pin of PCA82C250 is connected to the 22nd pin of LVC16245 and one end of R40, the other end of R40 is connected to the power supply; the second pin of PCA82C250 is grounded; the third pin of PCA82C250 is connected to one end of C35, and the other end of C35 Ground; the 4th pin of PCA82C250 is connected to the 23rd pin of LVC16245 and one end of R39, the other end of R39 is connected to the power supply; the 5th pin of PCA82C250 is floating; the 6th pin of PCA82C250 is connected to the 3rd pin of JP3 and one end of R42, the other end of R42 is connected to the 2nd pin of JP3; the 7th pin of PCA82C250 is connected to the 2nd pin of JP3 and one end of R42, and the other end of R42 is connected to the 3rd pin of JP3; The 8th pin of PCA82C250 is connected to one end of R41, and the other end of R41 is grounded.
开发系统环境：Development system environment:
Windows XP Professional(Build 2600.xpsp_sp2_gdr.050301-1510(Service Pack 2))Windows XP Professional (Build 2600.xpsp_sp2_gdr.050301-1510(Service Pack 2))
开发编程环境：Keil C51编程语言，Delphi 7.0，Visual Basic 6.0Development programming environment: Keil C51 programming language, Delphi 7.0, Visual Basic 6.0
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