Summary of the invention
The objective of the invention is DevCenter system oxygen long distance control system; Its function comprises real-time monitoring and record oxygenerator oxygen gas flow rate, oxygen concentration, pipeline pressure, the unlatching of Long-distance Control oxygen unit with stop, checking the history run state recording of oxygenerator, functions such as the how far journey client operation of cum rights limit management and management.
The object of the invention comprises that also oxygenerator can realize to the monitoring of oxygenerator site environment and to the monitoring of oxygenerator duty, and in the long-range duty that can force to intervene oxygenerator.Thereby for the stable operation of oxygenerator group provides good guarantee, and the centralized management of help company all oxygenerators of realization, break down like the oxygenerator group, just can make correct processing in time at far-end.
For realizing above purpose, the technical scheme that the present invention adopts is: a kind of center system oxygen long distance control system is characterized in that: native system is made up of oxygenerator remote monitoring control center, oxygenerator supervisory control device, monitor client and oxygenerator group; Monitoring control center connects the oxygenerator supervisory control device through network, and the primary controller of oxygenerator supervisory control device connects signals collecting and control output module through CANBUS, and signals collecting is connected the oxygenerator group with the control output module through a plurality of electric current loops;
The described oxygenerator remote monitoring employing 1U of control center server, two-wire fixedly IP inserts, and the broadband requires to be provided with the DDOS hardware firewall more than the 5Mbps;
Described oxygenerator supervisory control device is made up of with the control output module a master controller and a plurality of signals collecting; Adopt on-the-spot industrial-controlled general line between them and carry out data communication; Wherein master control is made as an embedded Control terminal; Hardware CPU partly adopts NXP to aim at the processor of industry control product design CORTEX-M3 core; This processor running frequency is 120MHZ; Inside carries 32KB RAM and 512KB ROM, ETHERNET network controller, and network interface chip adopts KSZ8041NL, DC24V to change DC5V type isolated supplies module, inner multi-voltage power supply management circuit, 10/100M network controller, 7 cun LCDs, 1 road isolated form CAN EBI, hummer, GPRS module compositions such as (alternative) that the 16:9 band touches;
Described client is a software in fact; Can be installed on the computing machine of any tool WINDOWS operating system; The Internet network is led in requirement, only will provide account number and password can login control center, and the running status of monitoring and managing each oxygenerator.
The CPU of described signals collecting and control output module hardware components adopts the processor that NXP aims at the CORTEX-M0 core that the industry control product establishes; Be equipped with the AD converter of high precision 16bit low temperature drift, contain sensor input interface, the sensor input interface of one tunnel pulsed, the 4 tunnel isolated switching value control output and one road CANBUS communication interfaces of two-way electric current loop form.
Described master controller connects a plurality of signals collecting and control output module, between adopt CANBUS communication.
Beneficial effect of the present invention: function of the present invention comprises supervises and writes down oxygen machine oxygen gas flow rate, oxygen concentration, pipeline pressure in real time; The unlatching of Long-distance Control oxygen unit with stop; Check the history run state recording of oxygenerator, functions such as the how far journey client operation of cum rights limit management and management; Thereby improved degree of accuracy to the control of data.
This center system oxygen long distance control system can realize the monitoring of oxygenerator site environment and the monitoring of oxygenerator duty, and in the long-range duty that can force to intervene oxygenerator.Thereby for the stable operation of corporate system oxygen unit provides good guarantee, and the centralized management of help company all oxygenerators of realization, break down like the oxygenerator group, just can make correct processing in time at far-end.
Embodiment
Below in conjunction with a preferred embodiment and accompanying drawing the present invention is described further, to help understanding content of the present invention.
As shown in Figure 1, the component relationship of this center system oxygen long distance control system: native system is made up of oxygenerator remote monitoring control center, oxygenerator supervisory control device, monitor client and oxygenerator group; Monitoring control center connects the oxygenerator supervisory control device through network, and the primary controller of oxygenerator supervisory control device connects signals collecting and control output module through CANBUS, and signals collecting is connected the oxygenerator group with the control output module through a plurality of electric current loops; The described oxygenerator remote monitoring employing 1U of control center server, two-wire fixedly IP inserts, and the broadband requires to be provided with the DDOS hardware firewall more than the 5Mbps.
Described client is a software in fact; Can be installed on the computing machine of any tool WINDOWS operating system; The Internet network is led in requirement, only will provide account number and password can login control center, and the running status of monitoring and managing each oxygenerator.
Be depicted as the access way and the principle of work of oxygenerator remote monitoring control center like Fig. 2-4: oxygenerator monitoring control center adopts the 1U server, and two-wire fixedly IP inserts, and the broadband requires to require to have the DDOS hardware firewall more than the 5Mbps; Access scheme has two kinds, is illustrated in figure 2 as first kind of access scheme, and first kind of access scheme is that to set up two-wire server advantage in company be safe, but the network insertion expense is than higher, and expense comprises purchase commodity, two-wire access fee of DDOS hardware firewall etc.; Be illustrated in figure 3 as second kind of access scheme, second kind of access scheme be with trust server in the two-wire machine room, its advantage is a low price, it is about 5000 ~ 8000 yuan that annual trustee's fee is used, but security and stability can not be controlled by controlling oneself fully.
Monitoring control center communication framework adopts C/S model, and all devices and monitor client Connection Service device all require safe authentication to login, and the data after the connection all require to carry out to carry out data transmission again after the data encryption.Allow connection request can connect simultaneously more than 1000, monitoring parameter comprises parameters such as oxygen gas flow rate, oxygen oxygen concentration, gaseous tension, and control function comprises forced shutdown, force switch, host groups and subsequent use unit and launches and function such as stop.Monitoring software has user management, the user weighs functions such as root management, historical data maintenance management, the demonstration of equipment end real-time running state, equipment failure alarm and processing.
As shown in Figure 4, expression oxygenerator remote monitoring control center comprises that WEB application program, system application, operating system, bottom drive and physical connection; When not offering the browser administration function, need not develop the WEB application program.
Be depicted as the composition mode and the principle of work of oxygenerator supervisory control device like Fig. 5-6: controller is made up of with the control output module a master controller and a plurality of signals collecting; Adopt on-the-spot industrial-controlled general line between them and carry out data communication; Wherein master control is made as an embedded Control terminal; Hardware CPU partly adopts NXP to aim at the processor of industry control product design CORTEX-M3 core; This processor running frequency is 120MHZ; Inside carries 32KB RAM and 512KB ROM, ETHERNET network controller, and network interface chip adopts KSZ8041NL, DC24V to change DC5V type isolated supplies module, inner multi-voltage power supply management circuit, 10/100M network controller, 7 cun LCDs, 1 road isolated form CAN EBI, hummer, GPRS module compositions such as (alternative) that the 16:9 band touches.
The CPU of described signals collecting and control output module hardware components adopts the processor that NXP aims at the CORTEX-M0 core that the industry control product establishes; Be equipped with the AD converter of high precision 16bit low temperature drift, contain sensor input interface, the sensor input interface of one tunnel pulsed, the 4 tunnel isolated switching value control output and one road CANBUS communication interfaces of two-way electric current loop form.
As shown in Figure 5, master controller connects a plurality of signals collecting and control output module, between adopt CANBUS communication, spread signal acquisition node and control output node very flexibly so just.
Shown in Fig. 5-6, the effect of each several part hardware in practical work process:
A. power unit: power supply is with DC24V 3A input, and interface adopts the PCB umbilical connector of 5.08mm, and for 3PIN imports, first pin is that power supply 24V anode, crus secunda are that common ground, tripod are power supply 24V negative terminal.Power supply has anti-reverse protection, and superpressure detects, and core parts adopt isolates power supply mode, to guarantee the overstable work of system.
B. sensing is imported and the AD collecting part: this partly is placed in signals collecting and controls on the output module; This machine can connect the signal input of one road pulse signal and 2 road electric current loop forms; Each road interface provides the output of 24V 200mA power, and has short defencive function and esd protection, and AD adopts high-precision adc; To guarantee the precision of signals collecting, the data of AD signals collecting are passed through the CAN bus transfer to master controller.
C. control output partly: this partly is placed on signals collecting and the control output module, and control output partly has No. 4 relays isolation output, and every road has short-circuit protection function separately, directly drives the external control relay, and driving voltage is 24V 200mA.
D. master controller part: the CONTEX-M3 processor is partly adopted in master control, is exclusively used in the industry control environment, has the main frequency of handling of 100MHZ, and is connected with the TFT controller through 16 BIT, 8080 buses, to realize that touch is imported and the demonstration of 7 cun TFT liquid crystal displays;
Isolate through the CAN bus simultaneously and connect signals collecting and control output module; And the RJ45 interface that adds the band network transformer of the 10M/100M physical layer interface chip through external support RMII interface protocol is realized the transmission with external data; And reserve a GPRS module interface for special applications and expansion.
Be illustrated in figure 7 as oxygenerator controller software layer framework, this framework mainly comprises application program, graphic element interface (GUI), IP kernel, operating system (ucos), bottom layer driving, start-up routine and Physical layer.