To realize the efficient and stable real-time monitoring and intelligent management of the urban public lighting, the remote monitoring system is developed. The system is composed of monitoring center and monitoring terminals, and realizes network connection via the advanced remote wireless communication technology GPRS. It uses TI Company’s MSP430 processor chip as the monitoring terminal controller, which integrates automatic control, data acquisition, communication and other technologies and has such functions as monitoring, remote control, anti-electricity theft, remote meter reading and communication. It’s proved by practice that the designed controller features reliable running, sound real-time performance and low cost, and has a broad and bright application prospect. The monitoring and management of public lighting is a typical sector and important part of the civil work. Due to the continuous development of urban construction and ever-enlarging lighting coverage, the traditional lighting management methods can not realize centralized monitoring, have poor real-time performance and cost lots of human and material resources; thus, can not satisfy the requirements of energy saving and efficiency improvement[1]. GPRS (General Packet Radio Service), the wireless packet exchange technology based on the second generation mobile communication system GSM, is very suitable for transmitting non-continuous, unexpected and small sets of street lamp monitoring data. Also, quick & easy log-on, real-time online, high-speed transmission, sound economical efficiency and many other advantages make GPRS become the first choice for remote measurement and control system[2]. Therefore, the development of GPRS-based public lighting remote monitoring system becomes a necessity. The designed monitoring system in this article is a typical distributed monitoring and data acquisition system integrating computer technologies, modern communication technologies and automatic control technologies. It conducts centralized monitoring and control on the cabinet transformer substations, transformer cabinets, control cabinets and other slave monitoring systems of the public lighting such as street lamps and landscape lamps of the city, to realize the real-time, remote monitoring and intelligent management of public lighting and ensure the efficient, all-weather running and on-demand, energy-saving lighting.

The uncertainty of passenger volume is the bottleneck of modern elevator group-controlled system, which influences the optimization process of group control and depresses the control performance. This paper presents a novel passenger volume estimation method. According to the specific conditions of an elevator, background subtraction is used to gain the visual density. And then the relational model of visual density is obtained with the system identification. By considering the status inside elevators, the directions of passenger movement, and the number of waiting passengers, this model offers effective parameters to elevator group-controlled strategy and guarantees the real time of control system. Compared with the traditional Hough transform detection, the method in this paper is an easy and efficient way to learn dynamic traffic by analyzing passenger traffic of elevator group-controlled system.

For Laser-Based forward looking radar cruise coasting stages independently evade terrain obstacles the subject. In Terrain avoidance algorithm, the paper presented the concept of flight vector triangle. By solving forward looking radar laser terrain points in the field of view of cost function, find the most suitable place flight vector topographic points of a triangle, determining terrain avoidance navigation point, greatly simplifies the gain terrain avoidance radar field angle calculation process navigation point. The algorithm is simple and quick, timely access to bypass navigation radar field of view, providing feasibility guarantees for the missiles’self avoiding flight.

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In order to meet the increasing requirements for express elevator control system and its intelligence and security, ARM chip is applied to construct hardware platform of elevator's main-board in this paper. BootLoader and the uCLinux are transplanted to this platform, and CAN-Bus and other related drivers are designed. A single elevator's operation algorithm is presented to achieve the elevator control logic. And the store and access of parameters of elevator are accomplished by real-time SQLite database. The main high-speed counting circuit is designed based on CPLD while the auxiliary one is based on AVR MCU, which guarantee the stability and reliability of the system. The operational results in elevator simulator verify the feasibility and efficiency of the control system.