A kind of municipal well lid long distance control system
Technical field
The utility model relates to a kind of municipal well lid long distance control system.
Background technology
Manhole is seen everywhere in the streets and lanes in city, scale is also in continuous expansion, once run into manhole cover damage or stolen, if can not get timely process, have vehicles or pedestrians and occur accident because of ignorant, potential safety hazard is very large, therefore, the disappearance of well lid or damage are accomplished that the very first time reports to the police and just seems necessary, accomplish that the situation that occurs can be carried out warnings in time and also can be carried out command scheduling and adjustment long-range.In addition along with the continuous expansion of well lid scale, administering and maintaining of municipal well lid also becomes more difficult, and how to carry out effective monitoring to municipal well lid has become a significant problem that must solve.Remote monitoring just can well solve the problem, and is also the direction of this kind of industry future development simultaneously.The domestic way mainly containing following several solution remote monitoring at present: 1) adopt CAN industrial bus centralized control; 2) high-power (RF) wireless digital broadcasting station is adopted; 3) transmit by mobile public network (GSM/GPRS/CDMA).Wherein, wire communication, data radio station etc. are traditional data transmission settling modes, and these traditional approachs exist the problems such as coverage, real-time, investment and operating cost.At present, the data transmission technology coverage that China Mobile, CHINAUNICOM promote mainly GPRS, CDMA etc. emerging is respectively large, real-time, and along with the arrival in 4G epoch, large discharge high stable data transmit the drawback fundamentally solving conventional transmission mode, the demand of approach profession data transmission more.
The concept of Internet of Things originates from 1999, nowadays commonplace accreditation is defined as: based on internet, RFID technique, EPC standard, on the basis of computer internet, utilize REID, wireless data leads to technology etc., constructing an internet in kind realizing global Item Information Real-Time Sharing is exactly Internet of Things.
Because the popularity rate of well lid is very high, domestic more existing producers are engaged in the research of well lid status monitoring this respect, also have some products commercially to sell, a part adopts cable to deploy to ensure effective monitoring and control of illegal activities, reliability is high but construction is complicated, and cost is high, is mainly communicated by RS485 bus or CAN.Power line carrier communication mode is directly carried on line of electric force control signal, although do not need extra operation circuit, larger by the quality influence of electrical network own.
Summary of the invention
Technical problem to be solved in the utility model is, not enough for prior art, a kind of municipal well lid long distance control system is provided, adopts wireless technology of Internet of things, solve the limitation of traditional monitor mode, improve robotization and the intelligence degree of the management of well lid status data.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of municipal well lid long distance control system, comprises multiple well lid monitor terminal, and described multiple well lid monitor terminal forms WLAN (wireless local area network) by WIFI module; The gateway of described WLAN (wireless local area network) is by wireless communication module and internet communication, and described internet communicates with Surveillance center.
Described wireless communication module is GPRS module.
The gateway of described WLAN (wireless local area network) is WIFI/GPRS gateway.
Compared with prior art, the beneficial effect that the utility model has is: the utility model adopts wireless interconnection technology, solve the limitation of tradition monitoring wire laying mode, project installation is simple, debugging is convenient, after installation, the state of all well lids only just need can be monitored in Surveillance center, great to save artificial, eliminate artificial uncertain factor, well lid state is very clear in Surveillance center, if well lid state changes, just concrete position can be known by Surveillance center, can notify that maintainer processes in time, the utilization of this cover system effectively raises robotization and the intelligence degree of well lid condition managing.
Accompanying drawing explanation
Fig. 1 is the utility model one example structure schematic diagram;
Fig. 2 is the utility model one embodiment course of work schematic diagram.
Embodiment
One, system composition manhole cover anti-theft warning system is made up of front end well lid monitor terminal, communication device, well lid supervision and management center.
(1) well lid monitor terminal
Comprise low-power consumption MCU, acceleration transducer, Power Management Unit forms, and as Fig. 3, utilizes heavy acceleration transducer to judge unlatching and the closure state of well lid.When the unauthorized unlatching of well lid, trigger detector alerting signal, by GPRS/WIFI communication device, is uploaded to Surveillance center.
(2) communication device (gateway)
The features such as communication device adopts GPRS/WIFI communication module, and this module has low-power consumption, and volume is little, and antenna performance is excellent.When after trigger alarm, the very first time state to be uploaded.
(3) Surveillance center
Receive the warning message of well lid monitoring acquisition terminal by computing machine and be combined with electronic chart, unified command scheduling being carried out to each local affiliated manhole cover anti-theft and deals with emergencies and dangerous situations and empowerment management is carried out to engineering maintenance.
Several technical requirements of monitor terminal:
Operating voltage |
DC 1.8V-4.2V |
Maximum operating currenbt |
900 milliamperes |
Maximum charging current |
400 milliamperes |
Operating ambient temperature |
-20 degree-60 degree |
Degree of protection |
Full waterproof IP67 |
Mission life |
3-5 ten thousand hours |
The technical indicator of control center is as follows:
1) 24 hours uninterrupted connecting Internets will be ensured, stable.
2) certain data backup and reduction mechanism is had, in case data cannot be recovered after there is calamitous corrupted data.
3) extensibility is strong, can interconnect, form larger internet of things with other urban operating mechanisms.
As shown in Figure 1, the utility model one embodiment comprises multiple well lid monitor terminal, and described multiple well lid monitor terminal forms WLAN (wireless local area network) by WIFI module; The gateway of described WLAN (wireless local area network) is by wireless communication module and internet communication, and described internet communicates with Surveillance center; Described wireless communication module is GPRS module; The gateway of described WLAN (wireless local area network) is WIFI/GPRS gateway.
As Fig. 2 tens well lid monitor terminals form a WLAN (wireless local area network) by WIFI, then by GPRS, data upload is arrived Surveillance center to internet by this LAN gateway.The advantage of this kind of networking is because the website of online is few, saves phonecard quantity, decreases the communication fee of paying to mobile operator.