CN210721746U - Perimeter system capable of automatically correcting - Google Patents
Perimeter system capable of automatically correcting Download PDFInfo
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- CN210721746U CN210721746U CN201921595423.7U CN201921595423U CN210721746U CN 210721746 U CN210721746 U CN 210721746U CN 201921595423 U CN201921595423 U CN 201921595423U CN 210721746 U CN210721746 U CN 210721746U
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Abstract
The utility model relates to the technical field of perimeter alarm, in particular to a perimeter system capable of automatically correcting, which comprises a plurality of groups of laser correlation sensors, an alarm host, an alarm and a main processor module; each group of laser correlation sensors comprises a laser transmitter, a laser receiver, an adjusting mechanism and an induction motor for driving the adjusting mechanism; the laser correlation sensor is used for collecting optical signals and converting the optical signals into electric signals; the alarm host is used for receiving the electric signals and converting the received electric signals into numerical signals; the main processor module is used for receiving the numerical signal, comparing the received numerical signal with a preset threshold value and outputting false alarm information and alarm information; the alarm host can receive false alarm information and drive the induction motor to adjust the installation position of the laser transmitter or the laser receiver; the alarm host can receive alarm information and transmit the alarm information to the alarm; the alarm is used for receiving the alarm information and giving an alarm.
Description
Technical Field
The utility model relates to a perimeter alarm technical field, concretely relates to perimeter system that can automatic correction.
Background
Perimeter guard against alarm system is all installed in order to prevent illegal acts of invading in petrochemical industry gas field, perimeter alarm system mainly sets up at each single well station in gas field, gas gathering station enclosure top, perimeter alarm system mainly adopts laser correlation sensor to respond to at present, a set of laser correlation sensor includes a laser emitter and a laser receiver, a set of laser correlation sensor can monitor an enclosure, the station is provided with 5 to 7 sets of perimeter alarm system usually, form different defence areas, the realization is to the comprehensive cover of station enclosure.
Such perimeter alarm systems have the following drawbacks: the false alarm rate is high, the main reason of false alarm is in later stage use, under the ageing effect of gravity and product, and because reasons such as the natural settlement of ground, laser emitter, laser receiver mounted position can the trace skew, lead to the signal reception unusual, will produce false alarm after the unusual production, perimeter alarm system once triggered, station PA/GA broadcast system will continue to report the warning of forbidding to break into, need carry out manual reset in the station and just can eliminate the warning, the work load of the on-the-spot manual reset of unmanned on duty station personnel has been increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a perimeter system that can automatic correction.
In order to solve the problem, the utility model adopts the following technical scheme:
a perimeter system capable of automatically correcting comprises a plurality of groups of laser correlation sensors, an alarm host, an alarm and a main processor module;
a plurality of groups of laser correlation sensors are respectively arranged on the wall of the single well station or the gas gathering station;
each group of laser correlation sensors comprises a laser transmitter, a laser receiver, an adjusting mechanism and a motor;
the laser transmitter is used for transmitting optical signals, the laser receiver is used for collecting the optical signals transmitted by the laser transmitter and converting the collected optical signals into electric signals, the adjusting mechanism is used for adjusting the installation position of the laser transmitter or the laser receiver, and the induction motor is used for driving the adjusting mechanism;
the alarm host is used for receiving the electric signal and converting the received electric signal into a numerical signal;
the main processor module is used for receiving the numerical value signal, comparing the received numerical value signal with a preset threshold value and outputting false alarm information and alarm information;
the alarm host can receive the false alarm information and drive the induction motor to adjust the installation position of the laser transmitter or the laser receiver; the alarm host can receive the alarm information and transmit the alarm information to an alarm;
the alarm is used for receiving the alarm information and giving an alarm.
The utility model discloses a preset the threshold value at the main processor module, compare received numerical signal and threshold value, judge the numerical signal of laser beam deviant in certain error range as the wrong report is alert to can judge the most because the micro-offset that laser emitter, laser receiver mounted position produced is alert for the wrong report, effectual reduction wrong report is alert. And according to the false alarm information, the installation positions of the laser correlation sensor and the laser receiver are automatically corrected through the induction motor and the adjusting mechanism, so that the workload of manual resetting of operators can be reduced, and the alarm precision is improved.
The main processor module comprises a D/A conversion module, a double comparator and an AND gate module, a numerical value signal is converted into an electric signal through the D/A conversion module, the electric signal is processed by the comparator to output two level signals, the high level is 1, the low level is 0, the signals output by the two comparators can be 10, 11, 01 and 00, the two levels output by the comparators are input into the AND gate module in parallel, the signal is judged to be a false alarm when the signal of the AND gate module is 1, the signal is judged to be an alarm when the signal of the AND gate module is 0, and the double comparator can be 358 LM double operational amplifier as a specific embodiment.
Preferably, the reference threshold in the dual comparator includes a first threshold and a second threshold, and when the received numerical signal is greater than or equal to the second threshold and smaller than the first threshold, it is determined as a false alarm, and when the received numerical signal is smaller than the second threshold, it is determined as an alarm.
In an implementation, generally, a voltage value corresponding to 100% of laser light emitted by the laser emitter being received by the laser receiver is a first threshold, and a voltage value corresponding to a certain error range (for example, 85%) of laser beam deviation value emitted by the laser emitter being received by the laser receiver is a second threshold.
The utility model discloses a predetermine the second threshold value at the host processor module, compare received numerical signal and second threshold value, will be greater than or equal to the second threshold value, and be less than the numerical signal of first threshold value, the numerical signal of laser beam deviant in certain error range judges as the wrong report police promptly to can judge for the wrong report police most because the trace skew that laser emitter, laser receiver mounted position produced.
Preferably, an SCADA system (Supervisory Control And data acquisition system, that is, a data acquisition And monitoring Control system) is arranged in the main processor module, And the SCADA system compares the received numerical value signal with a threshold. The SCADA system has the advantages of complete information, efficiency improvement, correct mastering of the system running state, decision acceleration, capability of helping to quickly diagnose the system fault state and the like.
Preferably, the main processor module is a pc (personal computer) machine.
Preferably, the height of the light curtain emitted by the laser emitter is greater than or equal to 40 cm. The height of the light curtain of current laser emitter transmission is about 20cm, the utility model discloses an increase the height of the light curtain of laser emitter transmission, it is more obvious to make laser receiver pass through the signal of telecommunication change of light signal conversion, is convenient for judge the signal of receipt, improves and judges the precision.
Preferably, the induction motor is a stepping motor, the adjusting mechanism comprises a plurality of adjusting frames, and all the adjusting frames can adjust the position of X, Y, Z in three directions.
Preferably, the alarm is an audible and visual alarm.
Preferably, the alarm is arranged on the single well station or the gas gathering station wall, or arranged in a master control room and arranged in other areas according to requirements.
Preferably, each side wall of the single well station or the gas gathering station is provided with at least one group of laser correlation sensors, so that the perimeter of the single well station or the gas gathering station can be alarmed in an all-around mode.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the utility model discloses a preset the threshold value at the host processor module, compare received numerical signal and threshold value, judge the numerical signal of laser beam deviant in certain error range as the wrong report is alert to can judge the most because the micro-offset that laser emitter, laser receiver mounted position produced is alert for the wrong report, effectual reduction wrong report is alert. And according to the false alarm information, the installation positions of the laser correlation sensor and the laser receiver are automatically corrected through the induction motor and the adjusting mechanism, so that the workload of manual resetting of operators can be reduced, and the alarm precision is improved.
Drawings
Fig. 1 is a schematic view of the installation of the perimeter system capable of automatic correction on the enclosure according to the present invention.
Fig. 2 is a schematic view of the installation of the laser receiver according to the present invention.
Fig. 3 is a block diagram of the present invention.
The labels in the figure are: 1-laser emitter, 2-laser receiver, 3-enclosing wall, 4-first adjusting frame, 5-second adjusting frame, 6-third adjusting frame.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
As shown in fig. 3, the perimeter system capable of automatically correcting comprises a plurality of groups of laser correlation sensors, an alarm host, an alarm and a main processor module, wherein the alarm host can be a single chip microcomputer, the main processor module can be a PC, and the alarm can be an audible and visual alarm and is installed on a wall or a general control room.
As shown in fig. 1, a plurality of groups of the laser correlation sensors are respectively installed on the top of the enclosure 3 of the single well station or the gas gathering station, and at least one group of the laser correlation sensors is installed on each enclosure 3. The laser correlation sensor comprises a laser transmitter 1, a laser receiver 2, an adjusting mechanism and an induction motor for driving the adjusting mechanism.
The induction motor and the adjusting mechanism are used in a matched mode, and the induction motor and the adjusting mechanism can be installed on the laser transmitter 1 together or can be installed on the laser receiver 2 together. The induction motor is a stepping motor, the adjusting mechanism comprises a plurality of adjusting frames, and all the adjusting frames can adjust the position in X, Y, Z three directions. Specifically, in this embodiment, as shown in fig. 2, all the adjusting frames include a first adjusting frame 4, a second adjusting frame 5 and a third adjusting frame 6, one end of the first adjusting frame 4 and one end of the second adjusting frame 5 are respectively hinged to the laser receiver 2, the laser receiver 2 can be driven by the stepping motor to rotate back and forth and left and right, the other ends of the adjusting frame 4 and the adjusting frame 5 are respectively connected to the adjusting frame 6, and the adjusting frame 6 can vertically move by the driving of the stepping motor, so that the adjustment of the vertical installation position of the laser receiver 2 is realized. In summary, the first adjusting frame 4, the second adjusting frame 5 and the third adjusting frame 6 cooperate with the stepping motor to achieve X, Y, Z position adjustment in three directions, so as to correct the installation position of the laser transmitter 1 or the laser receiver 2. The adjustment mechanism is not limited to the configuration in the present embodiment as long as it can adjust the position X, Y, Z in three directions.
The laser transmitter is used for transmitting laser, and the laser receiver is used for collecting optical signals and converting the collected optical signals into electric signals;
the alarm host is used for receiving the electric signal and converting the received electric signal into a numerical signal;
the main processor module is used for receiving a numerical signal, pre-storing a first threshold value and a second threshold value in the main processor module, and comparing the received numerical signal with the first threshold value and the second threshold value respectively; the main processor module comprises a D/A conversion module and a double comparator, a numerical signal is converted into an electric signal through the D/A conversion module, the electric signal is processed by the double comparator to output two level signals, the high level is 1, the low level is 0, the signals output by the two comparators can be 10, 11, 01 and 00, two output ends of the double comparator are input into the AND gate module in parallel, when the received numerical signal is smaller than a first threshold and is larger than or equal to a second threshold, the AND gate module outputs 1 and judges that a false alarm is generated, false alarm information is transmitted to the alarm host, and the alarm host drives the induction motor to adjust the installation position of the laser receiver until the received numerical signal is larger than or equal to the first threshold; when the received numerical value signal is smaller than the second threshold value, the and gate module outputs a signal of 0, judges that the signal is an alarm, and transmits the alarm signal to the alarm host, wherein the dual comparator may be an LM358 dual operational amplifier as a specific embodiment.
In practice, generally, a voltage value corresponding to 100% of the laser beam emitted by the laser transmitter being received by the laser receiver is a first threshold (V1), and a voltage value corresponding to 85% of the laser beam emitted by the laser transmitter being received by the laser receiver is a second threshold (V2).
Preferably, the first threshold (V1) may be in the range 98% < V1< 100%, and the corresponding second threshold (V2) is in the range 85% < V2 < 90%.
The alarm is used for receiving the alarm information and giving an alarm.
Preferably, the main processor may be a PC.
Preferably, an SCADA system (Supervisory Control And data acquisition system, that is, a data acquisition And monitoring Control system) is arranged in the main processor module, And the SCADA system judges the received numerical value signal. The SCADA system has the advantages of complete information, efficiency improvement, correct mastering of the system running state, decision acceleration, capability of helping to quickly diagnose the system fault state and the like.
Preferably, the height of the light curtain emitted by the laser emitter is greater than or equal to 40 cm. The height of the light curtain of current laser emitter transmission is about 20cm, the utility model discloses an increase the height of the light curtain of laser emitter transmission, it is more obvious to make laser receiver pass through the signal of telecommunication change of light signal conversion, is convenient for judge the signal of receipt, improves and judges the precision.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A perimeter system capable of automatically correcting is characterized by comprising a plurality of groups of laser correlation sensors, an alarm host, an alarm and a main processor module;
a plurality of groups of laser correlation sensors are respectively arranged on the wall of the single well station or the gas gathering station;
each group of laser correlation sensors comprises a laser transmitter, a laser receiver, an adjusting mechanism and an induction motor;
the laser transmitter is used for transmitting optical signals, the laser receiver is used for receiving the optical signals transmitted by the laser transmitter and converting the received optical signals into electric signals, the adjusting mechanism is used for adjusting the mounting position of the laser transmitter or the laser receiver, and the induction motor is used for driving the adjusting mechanism;
the alarm host is used for receiving the electric signal and converting the received electric signal into a numerical signal;
the main processor module is used for receiving the numerical signal, comparing the received numerical signal with a preset threshold value and outputting false alarm information and alarm information;
the alarm host can receive the false alarm information and drive the induction motor to adjust the installation position of the laser transmitter or the laser receiver; the alarm host can receive the alarm information and transmit the alarm information to an alarm;
the alarm is used for receiving the alarm information and giving an alarm.
2. The perimeter system capable of automatic correction according to claim 1, wherein said main processing module comprises a D/A conversion module, a dual comparator, and gate module, said dual comparator can preset threshold values, said threshold values comprise a first threshold value and a second threshold value,
when the received numerical value signal is greater than or equal to a second threshold value and smaller than a first threshold value, judging as a false alarm; and when the received numerical signal is smaller than the second threshold value, judging that the alarm is given.
3. An autocalibratable perimeter system according to claim 1, characterized in that a SCADA system is provided inside said main processor module.
4. An autocalibratable perimeter system according to claim 3, characterized in that said main processor module is a PC.
5. An automatically correctable perimeter system according to claim 1 wherein the height of the light curtain emitted by the laser emitters is greater than or equal to 40 cm.
6. The perimeter system of claim 1, wherein said induction motor is a stepper motor, and said adjustment mechanism comprises a plurality of adjustment brackets, all of said adjustment brackets capable of X, Y, Z three-directional positional adjustments.
7. An automatically correctable perimeter system according to any one of claims 1 to 6 wherein the alarm is an audible and visual alarm.
8. An automatically correctable perimeter system as claimed in claim 7 wherein the alarm is located on the single well or gas gathering station wall or in the general control room.
9. An automatically correctable perimeter system according to claim 7 wherein at least one set of said laser correlation sensors is provided on each perimeter wall of a single well station or a gas gathering station.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921595423.7U CN210721746U (en) | 2019-09-24 | 2019-09-24 | Perimeter system capable of automatically correcting |
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| CN201921595423.7U CN210721746U (en) | 2019-09-24 | 2019-09-24 | Perimeter system capable of automatically correcting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029250A (en) * | 2021-04-08 | 2021-06-25 | 武汉科技大学 | Blasting vibration and side slope displacement monitoring devices |
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2019
- 2019-09-24 CN CN201921595423.7U patent/CN210721746U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029250A (en) * | 2021-04-08 | 2021-06-25 | 武汉科技大学 | Blasting vibration and side slope displacement monitoring devices |
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