外文翻譯1英文.doc

The wireless temperature of CC430F5137 is gathered the warning system designsTo the large, defect of employing the occasion to be limited etc. of gathering the consumption of warning system of the temperature at present, have designed a temperature of wireless communication of low consumption based on CC430F5137 one-chip computer to gather the warning system. This system has high, wireless characteristic of transmitting dependability of low power dissipation, precision high etc. Introduce the characteristic of CC430F5137 chip and structural principle of hardware of the system, provide the systematic hardware and design block diagram and software procedure, and analyzed the temperature and gathered module and RF wirelessly and received and dispatched the module in detail. The experimental result has proved that adopts CC430F5137 design temperature to gather the feasibility of the warning system. The system runs stably and reliably, there is better application prospect. Foreword With the constant progress of science and technology, the real-time character gathered to the temperature in modern production, low and energy-consuming constant improvement of requirement with high efficiency, and a lot of on-the-spot environments of measuring the temperature are very abominable, make the attenbant difficult and arrive and measure live. As to this, it and can be wireless to need one and can be gathered, dealt with automatically and convey the temperature of data and gather the system. Meanwhile, in order to save the use cost and safeguard, this system also needs performance with work steady in a long-term. So it develops one low consumption to be and can wireless to transmit the temperature of datas to gather the system, can remedy the temperature at present and gather the defect in the field. The temperature that references are designed though have low consumption performance while gathering the system, but must connect and carry on communication with the circuit, this has exercised restraint in employing the occasion greatly, make its application limited. Temperature that references are design gather the intersection of ZigBee and wireless communication that system utilize as the intersection of communication and tool, but it will not finish the communication function unless utilize single connecting ZigBee module, so it is relatively high to make cost. Not only the low consumption performance with series MSP430 of CC430F5137 chip that to the above-mentioned shortcomings, this system adopts, and have function of RF wireless transceiver. These two kinds of performance have fully met the requirements of low consumption and wireless communication, make the systematic cost reduce, has reached the requirement employed at present. 1.Principle that a device runs wholly 1.1 Principle of running of the device Wireless temperature gather the warning system and is made up of two parts mainly, a part is that the temperature gathers the module, another part is the module of central control. The module of central control includes the keyboard and reveals module and warning module. Whole block diagram of system. At the time of system work, are gathered the temperature sensor in the module to finish the collection task to the temperature by each temperature at first, then CC430F5137 one-chip computer received the temperature parameter through I/O mouth, transmit the temperature information gathered to the master controller system through the integrated RF wireless transceiver within CC430F5137 finally. The temperature data that the main control system is gathered to each website carry on the analysis of the system, and reveal the result with the digital tube. Exceed, pay limit or lay limit as temperature, touch off the warning device, realize by driving a buzzer and alarm lamp. The upper and lower limit of the warning temperature can import the module to set up through the keyboard. The master console has two groups of numbers that are in charge of, the serial number that a group of digital tubes reveal the temperature to gather the module, can choose the temperature to be revealed to gather the serial number of the module by keyboard, another group reveals temperature value. 2 systematic hardwares are designed Gather the module and design designing with the central controller in hardware design including temperature of the warning system that the temperature is gathered. 2.1 The temperature is gathered the module is designed 2.1.1 CC430F5137 device introduction CC430F5137 is the products that TI MSP430F5xx MCU combined with low consumption RF transceiver, can realize the extremely low electric current is consumed, thus make the wireless network application of adopting the battery to supply power not need to maintain and can work and is as long as more than 10 years. In addition, the miniature advanced function that encapsulates including can also offer key motive force for new RF sensor network, in order to gather some to the central authorities to report data. CC430 F5137 is 16 ultralow consumption MCU, have 16 KB flashing memory, 2KB RAM, CC1101 radio, AES-128 and USCI, supply power voltage as 1.8- 3.6 V, normal work pattern consume electric current as 160 A/MHz, low the intersection of consumption and mode 3 it consumes the electric current to be 2.0 A. 2.1.2 RF of CC430F5137 is wireless to receive and dispatch the circuit of the module to design The integrated CC1101 radio transceiver within CC430F5137, RF frequency is 432.999817MHz, the channel interval is 199.951172kHz, the transfer rate of the data is 38.383484kbps. In this systematic design, can set up wirelessly and send the power. According to launching the size that the distance of the distance sets up the power, it is lowest that can make the consumption reach, realize the low consumption. Their circuit diagram, the power supply power of CC430F5137 saves battery No. 7 for two, the voltage is 3V, it is 26MHz to connect and shake brilliantly, RF_N and RF_P launch the pin for RF radio, two pins connect the aerial, its power can reach 30dBm, transmitting the distance can reach about 100m. 2.1.3 The temperature is gathered the circuit is designedIn view of the requirement of the low consumption of the apparatus, temperature sensors selected must have low consumption characteristics, have chosen the MAX6613 type integrated temperature sensor here. MAX6613 one at a high speed, low the intersection of consumption and the intersection of temperature and sensor of high precision, especially suitable to be used in products of the low consumption. Voltage range is 1.8- 5.5V that the power of MAX6613 supplies power; The electric current of the low power is consumed, the typical value is 7.5 A; It is 55 130 to measure the range; The non-linear error is 1.3 . It measures temperature and output voltage relational expression: Vout =-0.011 23T+1.8455Vref （1） Vout is the output voltage of the sensor in the type, T, in order to be examined the temperature, Vref is measuring the voltage of sensor got through the reference voltage. The one-chip computer gathers the output voltage that the mouth gathers the sensor through imitating, passes the formula 1 Can calculate the temperature value measured actually. Because the integrated ADC module within CC430F5137, the voltage range of its input is 0- 3.6V, can meet the requirement for the system, so can export the voltage of MAX6613 the mouth to connect in ADC of CC430F5137 inputs the mouth directly, their circuit diagram. 2.2 The master controller is designed RF of master controller receive, launch module and temperature gather RF in the module receive, launch module, set up same, no longer go into details here. 2.2.1 The warning system hardware circuit designs Leading through controlling openning and shutoff of the transistor to control buzzer and alarm lamp of warning system is open and closing, thus achieve the goal of calling the police. The intersection of CC430F5137 and the intersection of P2.0 and through control the intersection of level and level to output signal come, control to lead put through or end transistor mouth of one-chip computer, . If the transistor is led openly, then the buzzer calls the police and touches the alarm lamp only. When the value of the temperature examined exceeds the up and down limit range of temperature preserved, will start the warning system. Regulate in normal working range as the intersection of temperature and value, warning system can the automatic stop will call the police. 2.2.2 Keyboard and revealing the hardware circuit of the module is designed The keyboard adopts the keyboard mode of 4* 2, there are 8 buttons altogether, its button of function presses the button in order to start respectively, stop the button, a upper limit temperature value of function presumes the button, the lower temperature value of the function 2 sets for 3 temperature between button, function and gathers the serial number of the module and chooses the button, number value to add 1, number value and make a reduction of an alarm button. CC430F5137 has in all 16 pieces of outside that cut off I/O mouth, it is mouth of P0 mouth and P1 respectively. Here, adopting P0 mouth scans ports as the keyboard, so long as a key is pushed, mouth of two corresponding I/Os will be put for low level, so long as judge which mouth of two I/Os stops happening, can judge the button pushed, and then carry out corresponding operation. 2.2.3 Reveal the hardware circuit of the module is designed Reveal the requirement for considering the cost of the module, adopt the digital tube as revealing interfaces, . Select 8 digital tubes for use and reveal the temperature in the system. Among them the first 4 are one group, use for the serial number that reveals the temperature and gathers the module; The last four are one group, used for revealing the temperature and gathering the temperature value that the module is gathered, among them the first digital tube is the sign bit. The system adopts 74HC245 bus driver to drive the corresponding LED number to be in charge of, P1 mouth regarded as the chip selection signal of LED digital tube. 3 systematic software design Software design that the software design of the warning system includes gathering the module with master controller and temperature that the temperature is gathered. 3.1 Master controller software design Procedure procedure of the master controller. Press at the beginning at first the button system begins to run, CC430F5137 will send out a control order for the module of designated temperature survey at this moment, start the temperature to gather, gathered the temperature data examined of the module to send to the master controller system an initial and default one will be to reveal the first temperature to gather the measurement of the module by the temperature pointing . After the master controller receives the data, begin to carry out and reveal the procedure. Reveal the serial number that gathered the module of the temperature on the first group of digital tubes at first, the second group reveals temperature value. Master controller will judge temperature value only allow, if restrict, the system will touch off the warning device continuously, the buzzer will send out the noise at this moment, and the alarm lamp is lighted, until temperature value gets back to the range of allowing. If there are buttons that are pushed, will carry out the corresponding button function, and send to the designated temperature and gather the module. 3.2 The temperature is gathered the module software designs program Procedure procedure of the module that the temperature is gathered. After the master controller sends and controls the order, the temperature is gathered the module begins to receive the order, and carry out the corresponding order function. Temperature gather CC430F5137 in the module can gather