1 parking lot lighting control management system The system is based on the fieldbus Lon Works, the central control (management room of the management center) and the on-site control (located in the parking space) distributed two-level control system. The structure is divided into: central control room, parking space and Lon Works communication network. The system is shown as 1. According to different functions, the lighting control system can be divided into a duty room node and a parking space node, which are composed of a Lon Works control module and peripheral additional circuits. The parking space nodes are distributed at the parking lot. It is divided into 4 districts, 7 lanes in each district. Each channel has 2 inputs (ground coil and infrared sensor); 1 channel output (light control), and one input (emergency button) in each zone. Therefore, for each zone, there are 15 inputs and 7 outputs. The Lon Works control module has a total of 14 inputs/outputs, so the parking space requires 2 control modules per zone. The entire parking space requires 8 control modules. The duty room node is located in 2 duty rooms, each of which has 4 partition buttons, and controls the lights of each section of the road; 7 buttons in each zone, control the lights of each road; 1 buzzer per zone, emergency button of parking space When pressed, the buzzer will alarm; each relay switch automatically controls the lighting. When one of the parking lights is on, the button light of the corresponding road in the duty room partition is on. It can be seen that there are at least 15 inputs and 8 outputs per zone. Therefore, the duty room requires 2 Lon Works control modules per zone, and 2 duty rooms have a total of 16 control modules. The entire parking lot requires 24 Lon Works control modules. The communication control of all nodes of the system is shown as shown. 2 parking lot lighting control management system design The following is an example of the lighting control system design of the parking lot duty room to illustrate the detailed design process of the entire system. 2. 1 hardware design A parking room at the entrance and exit of the parking lot controls and controls the lighting of the parking lot. The duty room hardware consists of the duty room node and the control panel design. The duty room controls 2 nodes per zone, so one node controls the 4-way lighting of the zone, and the other node controls the 3-way lighting of the zone. All nodes use the common Lon Works control module. The control module is connected to the switch, and the output is connected to the LED and the buzzer. The hardware design of the four areas of the duty room is the same. Now, the node 1 of the partition (connecting 4 lights) is taken as an example. Is the circuit diagram of node 1, IO0 IO3 is defined as the output pin, connected to 4 LEDs, indicating the status of the 1st channel of the partition 1 illumination. The KO1 expansion jack and IO8 IO10 are defined as output pins, which are respectively connected to 4 relays for automatic control of the 14-way illumination, and the relay port 4 is connected to the normally open contact of the switch. IO4 IO7 is defined as an input pin, which is connected to 4 switches for manual control of the 14th illuminator of Zone 1. The control panel (as shown in 4) has 1 total button (controls the lighting of the entire parking lot), 4 partition buttons (simultaneously control the lighting of each section of the partition, 7 buttons in each zone, respectively control the lighting of each road, each zone 1 buzzer, buzzer alarm when the emergency button of the parking space is pressed. When a certain street light of the parking space partition is on, the button light of the corresponding road of the control panel is on. The button not only has a switching effect, but also has a light-emitting diode. The buzzer in each zone of the control panel is directly connected to the corresponding I/O interface of the control module and the 12 V power supply. The total button on the control panel is connected to the four partition buttons. Once the total button is pressed, the equivalent of 4 partition buttons is also pressed, and all the lights in each partition are lit. Here, the function of the diode is single-pass, so that the partition button does not affect the illumination of other areas when pressed. 2. 2 LON control module and the communication control network of the upper PC monitor combine data detection, data processing and system monitoring, which consists of upper PC, field intelligent node, intelligent network adapter and communication medium. Lon Works is used for on-site processing, and the PC in the control room performs serial digital communication with it to control the site nodes. The topology of the network control is as shown. 2. 3 software design The software design and hardware design of the duty room are similar. Since the tasks to be completed in the two duty rooms and the four partitions are identical, the application is exactly the same, but only 2 nodes in each partition (the duty room 4 street light control points, on duty) The application of the room 3 street light control point is slightly different, but even the same application has different behaviors on the network through the binding of network variables to form different network images. The following is an example of the software design process of the system by taking the control node (node ​​1) of the 4-way lamp in the duty room as an example. 2. 3. 1 node definition Enter the network variable: SNV T_lev_tin_askz4 parking space request to query the lighting status of a partition 4 street lights in the duty room SNV T_tin_state4 parking space status change of a partition 4 street lights SNV T_lev_tin zhi_con7 duty room simultaneously control parking space a partition 7 street light output network variable: SNV T_lev_tin zhi_askt4 duty room request inquiry The lighting status of the 4 street lights of a certain compartment of the duty room SNV T_state zhi_con4 The control room controls the lighting status of a partition 4 street lights SNV T_lev_disc zhi_con7 to the duty room 4 street light control node transfer partition master control button press input I / O object: IO_4 bit control1 It is used to manually control the lighting status of the 1st street light of a certain parking space. IO_5 bit control2 is used to manually control the lighting status of the 2nd street light of a certain parking area. IO_6 bit control3 is used to manually control the lighting status of the 3rd street light of a certain parking space. IO_7 bit Control4 is used to manually control the illumination status of the 4th street light of a certain parking area. I/O object: IO_0 bit display1 is used to display the illumination status of the 1st street light of a certain parking space. IO_1 bit display2 is used to display the second street light of a certain parking space. Illumination status IO_2 bit display3 is used to display parking spaces Illumination status of the 3rd street light of a certain area IO_3 bit display4 is used to display the illumination status of the 4th street light of a certain parking space. KO1 bit control1 is used to automatically control the lighting status of the 1st street light of a certain parking area. IO_8 bit control2 is used to automatically control the parking space. Illumination status of the 2nd street lamp of a certain area IO_9 bit control3 is used to automatically control the illumination status of the 3rd street lamp of a certain parking area. IO_10 bit control4 is used to automatically control the illumination status of the 4th street lamp of a certain parking space. 2. 3. 2 designated functions Since the neuron chip cannot maintain the state of the I/O pin after power-down recovery, it prevents the I/O pin from being maintained when the parking node is powered up, powered down, or the power supply voltage is unstable. The original state of the foot can be provided by the duty room node to the parking space node to provide illumination status of the illumination of a certain zone 4 lights. 2. 3. 3 application process The application flow of the 4 street light control node of a partition room in the duty room is as shown. 3 end The field bus Lon Work is applied in the system, which makes the wiring of the system very simple. A pair of twisted pairs can be connected to multiple devices. When it is necessary to add field devices, it is not necessary to add a new cable, and the cable can be connected nearby. on. Therefore, the installation cost is saved. Due to the adoption of a fully distributed control system architecture, the system structure is simplified and reliability is improved. The LonT alk protocol used by Lon Works technology is encapsulated in a neuron chip, which reduces the development difficulty of users and improves the reliability of communication. The use of the finished Lon Works universal control module greatly simplifies system development, involves almost no complicated hardware development, and mainly develops specific application programs for the system. Fiber ST To ST Adapter is also known as ST fiber optic mating sleeves. Fiber optic ST adapters are used to provide a cable to cable or cable to equipment fiber optic connection. Foclink supplies a wide range of mating single mode and multimode ST Adapter, zirconia sleeve and bronze sleeve, simplex and duplex ST coupler. Hybrid fiber optic ST adapters,such as female to male & male to male fiber adapters, are widely applied in optical communication system, cable television network, LAN. We offer an extensive line of fiber optic adapters that offer superior low loss performance with very high repeatability. ST Adapter ST Adapter,ST To ST Adapter,ST Fiber Adapter Foclink Co., Ltd , http://www.scfiberpigtail.com