CN102877888B - Proximity warning system - Google Patents
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- CN102877888B CN102877888B CN201210363392.9A CN201210363392A CN102877888B CN 102877888 B CN102877888 B CN 102877888B CN 201210363392 A CN201210363392 A CN 201210363392A CN 102877888 B CN102877888 B CN 102877888B
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Abstract
The invention provides a proximity warning system which comprises at least one magnetic-field antenna, at least one detector, a signal receiver, a processor and a warning device. Each magnetic-field antenna is arranged on under-mine mechanical equipment, each detector is arranged on a worker and used for generating magnetic field induction signals in the condition of inducing magnetic fields of the magnetic field antennas, the signal receiver is used for receiving magnetic field induction signals from the detectors, the processor is used for judging whether the worker is within a dangerous region of the under-mine mechanical equipment or not and generating warning instructions in the condition that the signal receiver receives the field induction signals, and the warning device is used for warning when receiving the warning instructions. By the technical scheme, the worker approximate to the under-mine mechanical equipment can be warned, and accidental injury of personnel caused by complicated working environments under a mine is avoided.
Description
Technical field
The present invention relates to early warning technology field under ore deposit, in particular to one close to early warning system.
Background technology
Due to bad environments under mine, stir up a cloud of dust, the operating personnel visual field is very unopen, and due to machine fuselage very long, more make the visibility of operating personnel reduce, affect the visual field of personnel in the pit, earshot, so just there is the potential safety hazard of thrusting into.
Therefore, need one close to early warning technology, can warn close to the staff of plant equipment under ore deposit, avoid because working environment complicated under ore deposit causes personnel to accidentally injure.
Summary of the invention
The present invention, just based on the problems referred to above, proposes one close to early warning technology, can warn close to the staff of plant equipment under ore deposit, avoids because working environment complicated under ore deposit causes personnel to accidentally injure.
In view of this, the present invention proposes a kind of close to early warning system, comprising: at least one magnetic field antenna, to be arranged under ore deposit in plant equipment; At least one sniffer, is arranged on it staff, for when sensing the magnetic field of described magnetic field antenna, generates corresponding magnetic field induction information; Signal receiving device, for receiving the magnetic field induction information from described sniffer; Treating apparatus, for when described signal receiving device receives described magnetic field induction information, judges that described staff is in the deathtrap of plant equipment under described ore deposit, and generates alert command; Alarming apparatus, for carrying out alarm when receiving described alert command.
In this technical scheme, by plant equipment arranging magnetic field antenna under ore deposit, when staff senses magnetic field, then illustrate and plant equipment close together under ore deposit, exist by the danger of hitting, thus by alarm, staff is warned.According to different actual conditions, obviously can adjust the emissive porwer of magnetic field antenna, to carry out early warning better.Under ore deposit, plant equipment can be the equipment for the production operation under mine such as Lian Caiji.Alarming apparatus can be arranged under ore deposit in plant equipment and/or with it staff, and various ways such as comprising light, sound, vibrations can be adopted to carry out alarm.
In technique scheme, preferably, described magnetic field induction information comprises real-time magnetic field intensity, then described treating apparatus also comprises: comparing unit, for more described real-time magnetic field intensity and default magnetic field intensity, wherein, when described real-time magnetic field intensity is more than or equal to described default magnetic field intensity, described treating apparatus judges that described staff is in described deathtrap.
In this technical scheme, if the distance of sniffer and magnetic field antenna is nearer, the magnetic field intensity then sensed should be larger, therefore except above-mentioned directly the emissive porwer of magnetic field antenna is regulated except, the size of the magnetic field intensity that can also sense according to sniffer, judges the distance of plant equipment under staff and ore deposit.Particularly, in advance according to the size of deathtrap, corresponding magnetic field intensity threshold value can be set, then when real-time magnetic field intensity is more than or equal to this magnetic field intensity threshold value, illustrate that user enters deathtrap, need to carry out alarm.
In above-mentioned arbitrary technical scheme, preferably, described treating apparatus also comprises: numerical value change judging unit, judge the numerical value change of described real-time magnetic field intensity, if described real-time magnetic field intensity is in rising trend, under then described ore deposit forbidden by described treating apparatus, plant equipment moves, if on a declining curve, does not then process.
In this technical scheme, deathtrap might not be really dangerous, and just there is larger probability may occur unsafe condition, thus when staff just enters deathtrap, only carry out alarm, for plant equipment under ore deposit, do not need to change.If but along with the movement of plant equipment under ore deposit, real-time magnetic field intensity is in rising trend, namely constantly increase, then under explanation ore deposit, the distance of plant equipment and staff reduces, thus by forbidding the further movement of plant equipment under ore deposit, thus guarantee that staff has the more time to leave deathtrap, reduce the possibility occurring accidentally injuring.Except forbidden moves; under can also making ore deposit, plant equipment is shut down, thus avoids under ore deposit while plant equipment stopping movement, when staff still advances to plant equipment under ore deposit; hurt by other workpieces of plant equipment under ore deposit, such as connect the drum segment etc. adopting machine front end.
In above-mentioned arbitrary technical scheme, preferably, the quantity of described magnetic field antenna is multiple, and each magnetic field antenna has different tranmitting frequencies, then described magnetic field induction information comprises the tranmitting frequency of real-time magnetic field intensity corresponding to multiple described magnetic field antenna and correspondence, and described treating apparatus also comprises: positioning unit, the magnetic field antenna that each real-time magnetic field intensity is corresponding is determined according to the tranmitting frequency in described magnetic field induction information, and the distance of described staff and each described magnetic field antenna is determined according to real-time magnetic field intensity, thus the relative position of plant equipment under determining described staff and described ore deposit, judge whether described staff is in described deathtrap for described treating apparatus according to described relative position.
In this technical scheme, by using different tranmitting frequencies, can different magnetic field antennas be distinguished.For each magnetic field antenna wherein, according to the real-time magnetic field intensity that sniffer senses, the distance of itself and magnetic field antenna can be confirmed, be such as X rice, then staff may be in this magnetic field antenna be the center of circle, on the X rice circle that is radius (certainly, magnetic field may be oval, then staff may be present on the ellipse residing for magnetic induction line of corresponding magnetic field intensity).Owing to there is multiple magnetic field antenna, therefore for other magnetic field antenna, also can form a circle or ellipse, add the position that magnetic field antenna under described ore deposit, plant equipment is arranged, just can analyze the positional information obtained residing for staff.
In above-mentioned arbitrary technical scheme, preferably, also comprise: display unit, for showing the relative position of plant equipment under described staff and described ore deposit.
In this technical scheme, by being shown by the relative position of plant equipment under staff and ore deposit, the operating personnel be convenient under ore deposit in plant equipment observe, and operate according to actual conditions, such as manually change direction of advance or shutdown etc.
In above-mentioned arbitrary technical scheme, preferably, described treating apparatus also comprises: instruction judging unit, instruction for performing as required judges the target location of plant equipment under described ore deposit, if described target location reduces causing the distance of plant equipment and described staff under described ore deposit, then forbid performing corresponding instruction.
In this technical scheme, such as staff is positioned at the right front of plant equipment under ore deposit, if then assigned the instruction of advancing to right front, then will the distance of plant equipment under staff and ore deposit caused to reduce, thus threatens to the safety of staff.By the judgement to instruction, the generation of above-mentioned unsafe condition can be avoided.
In above-mentioned arbitrary technical scheme, preferably, the quantity of described sniffer is that multiple, different sniffers is used for responding to the magnetic field of described magnetic field antenna in different space planes.
In this technical scheme, by arranging multiple sniffer with it staff, in different spaces plane, carry out magnetic field induction, thus make staff be in station, squat, when sitting back and waiting various posture, all can carry out normally effectively responding to magnetic field.
In above-mentioned arbitrary technical scheme, preferably, described signal receiving device is arranged on the remote control of plant equipment under controlling described ore deposit.
In this technical scheme, by being arranged on the remote control device by signal receiving device, other entity device need not be reset, being convenient to centralized operation and controlling.
In above-mentioned arbitrary technical scheme, preferably, described staff comprises multiple type, then describedly also comprise close to early warning system: setting device, for arranging the scope of described deathtrap for the staff of each type.
In this technical scheme, the staff etc. that staff may be divided into the staff in tunnel, operate plant equipment under ore deposit, the scope of different deathtraps then should be there is to dissimilar staff, such as comparatively the latter should larger (namely farther with the distance of plant equipment under ore deposit) in the former deathtrap, thus the normal operation of plant equipment under guaranteeing ore deposit, also eliminate the potential safety hazard for other staff.
In above-mentioned arbitrary technical scheme, preferably, the staff of each type adopts corresponding frequency to send described magnetic field induction information, and described treating apparatus also comprises: frequency identification unit, frequency for the magnetic field induction information received described signal receiving device identifies, to determine the type of corresponding staff.
In this technical scheme, by adopting different frequencies when sending magnetic field induction information, thus accurately distinguishing the type of staff, avoiding identifying the impact worked under ore deposit by mistake.
By above technical scheme, can warn close to the staff of plant equipment under ore deposit, avoid because working environment complicated under ore deposit causes personnel to accidentally injure.
Accompanying drawing explanation
Fig. 1 shows according to an embodiment of the invention close to the block diagram of early warning system;
Fig. 2 shows according to an embodiment of the invention close to the structural representation of early warning system;
Fig. 3 and Fig. 4 shows according to an embodiment of the invention close to the operating principle schematic diagram of early warning system.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 1 shows according to an embodiment of the invention close to the block diagram of early warning system.
As shown in Figure 1, according to an embodiment of the invention close to early warning system 100, comprising: at least one magnetic field antenna 102, to be arranged under ore deposit in plant equipment; At least one sniffer 104, is arranged on it staff, for when sensing the magnetic field of described magnetic field antenna 102, generates corresponding magnetic field induction information; Signal receiving device 106, for receiving the magnetic field induction information from described sniffer 104; Treating apparatus 108, for when described signal receiving device 106 receives described magnetic field induction information, judges that described staff is in the deathtrap of plant equipment under described ore deposit, and generates alert command; Alarming apparatus 110, for carrying out alarm when receiving described alert command.
In this technical scheme, by plant equipment under ore deposit arranges magnetic field antenna 102, when staff's (being interpreted as the sniffer 104 that staff wears) senses magnetic field, then illustrate and plant equipment close together under ore deposit, exist by the danger of hitting, thus by alarm, staff is warned.According to different actual conditions, obviously can adjust the emissive porwer of magnetic field antenna 102, to carry out early warning better.Under ore deposit, plant equipment can be the equipment for the production operation under mine such as Lian Caiji.Alarming apparatus 110 can be arranged under ore deposit in plant equipment and/or with it staff, and various ways such as comprising light, sound, vibrations can be adopted to carry out alarm.
In technique scheme, preferably, described magnetic field induction information comprises real-time magnetic field intensity, then described treating apparatus 108 also comprises: comparing unit 1080, for more described real-time magnetic field intensity and default magnetic field intensity, wherein, when described real-time magnetic field intensity is more than or equal to described default magnetic field intensity, described treating apparatus 108 judges that described staff is in described deathtrap.
In this technical scheme, if sniffer 104 is nearer with the distance of magnetic field antenna 102, the magnetic field intensity then sensed should be larger, therefore except above-mentioned directly the emissive porwer of magnetic field antenna 102 is regulated except, the size of the magnetic field intensity that can also sense according to sniffer 104, judges the distance of plant equipment under staff and ore deposit.Particularly, in advance according to the size of deathtrap, corresponding magnetic field intensity threshold value can be set, then when real-time magnetic field intensity is more than or equal to this magnetic field intensity threshold value, illustrate that user enters deathtrap, need to carry out alarm.
In above-mentioned arbitrary technical scheme, preferably, described treating apparatus 108 also comprises: numerical value change judging unit 1082, judge the numerical value change of described real-time magnetic field intensity, if described real-time magnetic field intensity is in rising trend, under then described ore deposit forbidden by described treating apparatus 108, plant equipment moves, if on a declining curve, does not then process.
In this technical scheme, deathtrap might not be really dangerous, and just there is larger probability may occur unsafe condition, thus when staff just enters deathtrap, only carry out alarm, for plant equipment under ore deposit, do not need to change.If but along with the movement of plant equipment under ore deposit, real-time magnetic field intensity is in rising trend, namely constantly increase, then under explanation ore deposit, the distance of plant equipment and staff reduces, thus by forbidding the further movement of plant equipment under ore deposit, thus guarantee that staff has the more time to leave deathtrap, reduce the possibility occurring accidentally injuring.Except forbidden moves; under can also making ore deposit, plant equipment is shut down, thus avoids under ore deposit while plant equipment stopping movement, when staff still advances to plant equipment under ore deposit; hurt by other workpieces of plant equipment under ore deposit, such as connect the drum segment etc. adopting machine front end.
In above-mentioned arbitrary technical scheme, preferably, the quantity of described magnetic field antenna 102 is multiple, and each magnetic field antenna 102 has different tranmitting frequencies, then described magnetic field induction information comprises corresponding to multiple real-time magnetic field intensity of described magnetic field antenna 102 and the tranmitting frequency of correspondence, and described treating apparatus 108 also comprises: positioning unit 1084, the magnetic field antenna 102 that each real-time magnetic field intensity is corresponding is determined according to the tranmitting frequency in described magnetic field induction information, and the distance of described staff and each described magnetic field antenna 102 is determined according to real-time magnetic field intensity, thus the relative position of plant equipment under determining described staff and described ore deposit, judge whether described staff is in described deathtrap for described treating apparatus 108 according to described relative position.
In this technical scheme, by using different tranmitting frequencies, can different magnetic field antennas 102 be distinguished.For each magnetic field antenna 102 wherein, according to the real-time magnetic field intensity that sniffer 104 senses, the distance of itself and magnetic field antenna 102 can be confirmed, be such as X rice, then staff may be in this magnetic field antenna 102 be the center of circle, on the X rice circle that is radius (certainly, magnetic field may be oval, then staff may be present on the ellipse residing for magnetic induction line of corresponding magnetic field intensity).Owing to there is multiple magnetic field antenna 102, therefore for other magnetic field antenna 102, also can form a circle or ellipse, add the position that magnetic field antenna 102 under described ore deposit, plant equipment is arranged, just can analyze the positional information obtained residing for staff.
In above-mentioned arbitrary technical scheme, preferably, also comprise: display unit 112, for showing the relative position of plant equipment under described staff and described ore deposit.
In this technical scheme, by being shown by the relative position of plant equipment under staff and ore deposit, the operating personnel be convenient under ore deposit in plant equipment observe, and operate according to actual conditions, such as manually change direction of advance or shutdown etc.
In above-mentioned arbitrary technical scheme, preferably, described treating apparatus 108 also comprises: instruction judging unit 1086, instruction for performing as required judges the target location of plant equipment under described ore deposit, if described target location reduces causing the distance of plant equipment and described staff under described ore deposit, then forbid performing corresponding instruction.
In this technical scheme, such as staff is positioned at the right front of plant equipment under ore deposit, if then assigned the instruction of advancing to right front, then will the distance of plant equipment under staff and ore deposit caused to reduce, thus threatens to the safety of staff.By the judgement to instruction, the generation of above-mentioned unsafe condition can be avoided.
In above-mentioned arbitrary technical scheme, preferably, the quantity of described sniffer 104 is that multiple, different sniffer 104 for responding to the magnetic field of described magnetic field antenna 102 in different space planes.
In this technical scheme, by arranging multiple sniffer 104 with it staff, in different spaces plane, carry out magnetic field induction, thus make staff be in station, squat, when sitting back and waiting various posture, all can carry out normally effectively responding to magnetic field.
In above-mentioned arbitrary technical scheme, preferably, described signal receiving device 106 is arranged on the remote control of plant equipment under controlling described ore deposit.
In this technical scheme, by signal receiving device 106 being arranged on the remote control of existing plant equipment under controlling ore deposit, other entity device need not be reset, being convenient to centralized operation and controlling.
In above-mentioned arbitrary technical scheme, preferably, described staff comprises multiple type, then describedly also comprise close to early warning system 100: setting device 114, for arranging the scope of described deathtrap for the staff of each type.
In this technical scheme, the staff etc. that staff may be divided into the staff in tunnel, operate plant equipment under ore deposit, the scope of different deathtraps then should be there is to dissimilar staff, such as comparatively the latter should larger (namely farther with the distance of plant equipment under ore deposit) in the former deathtrap, thus the normal operation of plant equipment under guaranteeing ore deposit, also eliminate the potential safety hazard for other staff.
In above-mentioned arbitrary technical scheme, preferably, the staff of each type adopts corresponding frequency to send described magnetic field induction information, and described treating apparatus 108 also comprises: frequency identification unit 1088, frequency for the magnetic field induction information received described signal receiving device 106 identifies, to determine the type of corresponding staff.
In this technical scheme, by adopting different frequencies when sending magnetic field induction information, thus accurately distinguishing the type of staff, avoiding because identifying the impact worked under ore deposit by mistake.
Fig. 2 shows according to an embodiment of the invention close to the structural representation of early warning system.
As shown in Figure 2, at this close in early warning system, two parts can be divided in locus residing for it, Part I to be arranged under ore deposit in plant equipment, such as connect on the machine of adopting, comprise the treating apparatus 108 that controller 1(is equivalent in Fig. 1), display 2(is equivalent to the display unit 112 in Fig. 1), early warning system receiving element 31(is equivalent to the signal receiving device 106 in Fig. 1), remote control receiver unit 32, magnetic field antenna 102, warning flashing lamp 7(is equivalent to the alarming apparatus 110 in Fig. 1, and obviously can also just like other the alarming apparatus such as alarm bell) etc., and Part II is arranged on the body of staff, be fixed by the mode such as wearing, comprise sniffer 104, setting device 114 that program monitoring unit 6(is equivalent in Fig. 1) etc. (obviously also alarming apparatus can be set with it staff, to warn better).
For Part I, first comprising at least one magnetic field antenna 102, by forming magnetic field around it, the sniffer 104 of Part II can be responded to magnetic field within the specific limits.
After sniffer 104 senses the magnetic field that magnetic field antenna 102 is formed, generate magnetic field induction information, and be sent to early warning system receiving element 31.On the one hand, the magnetic field induction information received is sent to controller 1 by early warning system receiving element 31, is undertaken judging and controlling by controller 1; On the other hand, magnetic field induction information is sent to display 2 by early warning system receiving element 31, the position of staff is corresponded to by display 2 couples of sniffer 104() show, so that the operating personnel of plant equipment check more intuitively under ore deposit with the relative position of plant equipment under ore deposit.
In the comparatively simple mode of one, the information of " detecting magnetic field " only can be included in magnetic field induction information, then controller 1 is after receiving this magnetic field induction information, just directly can control alarming apparatus such as warning flashing lamp 7 grade and carry out alarm, to point out the operating personnel of plant equipment under ore deposit to make a response, and the staff that sniffer 104 is worn in prompting leaves current dangerous region in time.For this executive mode, need, in advance according to the size of the deathtrap of setting, to arrange the emission of magnetic field intensity of magnetic field antenna 102, magnetic field can be detected scope that device 104 senses and deathtrap match.In addition, while carrying out alarm, under can directly controlling ore deposit by controller 1, plant equipment stops mobile or shuts down, thus collision free staff.
In the slightly aobvious complicated mode of another kind, concrete magnetic field intensity can be included in magnetic field induction information, due under identical circumstances, staff's sniffer 104 is with it nearer with plant equipment distance under ore deposit, obviously the magnetic field intensity sensed is also larger, then according to magnetic field intensity, controller 1 can judge that staff is current with the reality of plant equipment under ore deposit, concrete distance, thus more accurately judge whether staff is in deathtrap, to make corresponding reaction.
In above-mentioned two kinds of modes, all only can arrange a magnetic field antenna 102 can realize, and in the more complicated mode of another kind, need the diverse location of plant equipment under ore deposit that multiple magnetic field antenna 102 is set, thus sensed by sniffer 104 correspond to the magnetic field intensity of each magnetic field antenna 102, determine the distance of staff and each magnetic field antenna 102, and according to this to the particular location of staff under ore deposit around plant equipment, and can monitor in real time according to walking about of staff.Located accurately by this, directly can show on a display 2 on the one hand, so that the operating personnel of plant equipment obtain impression intuitively under ore deposit, and make the reaction such as alarm, shutdown in time, on the other hand can particular location residing for staff, under judging current ore deposit, whether plant equipment needs the instruction performed may threaten to staff, when such as staff is in the right front of plant equipment under ore deposit, if plant equipment moves to left front or rear under present instruction needs ore deposit, then can not threaten to staff, can directly perform instruction and not need to shut down, if but present instruction need ore deposit under plant equipment move to right front, then owing to may threaten to staff, controller 1 will not allow this instruction to perform, to guarantee the life security of staff.
In addition, for the staff of operation under ore deposit and the staff that operates plant equipment under ore deposit, because the latter needs to operate plant equipment under ore deposit, obviously should with plant equipment under ore deposit closer to, but still there is certain deathtrap.Therefore, different deathtraps can be delimited for different staff, and during by making sniffer 104 send magnetic field induction information, adopt different tranmitting frequencies, thus the identity information of corresponding staff identified.
Below in conjunction with Fig. 3 and Fig. 4, be described in detail to steps such as the position judgment of the staff under each mode above-mentioned, wherein, Fig. 3 and Fig. 4 shows according to an embodiment of the invention close to the operating principle schematic diagram of early warning system.
As shown in Figure 3, deathtrap is preset with around plant equipment 30 under ore deposit, such as same staff, a deathtrap can be set, there is a boundary line 20 in this deathtrap correspondence, then for the first situation described in Fig. 2, and can by regulating the emissive porwer of magnetic field antenna 102, make sniffer 104 near boundary line 20 or when crossing boundary line 20, will magnetic field be sensed; For the second situation, the default magnetic field intensity corresponding to boundary line 20 can be determined in advance, and in real time the magnetic field intensity comprised in magnetic field induction information is identified, if be greater than default magnetic field intensity, then judge to enter deathtrap; For the third situation, be described below in conjunction with Fig. 4.
If plant equipment 30 is only arranged a magnetic field antenna A1 under ore deposit, magnetic field intensity in the magnetic field induction information that then at most only can send according to sniffer 104, judge the distance of sniffer 104 and magnetic field antenna A1, be assumed to L1, then sniffer 104 may be present in A1 is the center of circle, on circle that L1 is radius.The circle in Fig. 4 with A1 being the center of circle is smaller, if that arrange is magnetic field antenna A3, then can find out from figure, corresponding circle covers very large scope, makes the position of sniffer 104 may be in 3 directions of plant equipment 30 under ore deposit.
And when being provided with two magnetic field antennas, such as A1 and A2, then because sniffer 104 is on two circles simultaneously, just can determine on its intersection point being in two circles, such as may be in B1 or B2 in figure, then now in very large range improve the certainty of location of personnel.
Further, if be provided with A3 again, be then that the circle in the center of circle intersects at B2, C, D with first the first two circle respectively with A3, so, obviously can determine staff should be in B2 point or near, thus more adequately determine the position of staff.
In addition, because the magnetic field area coverage of magnetic field antenna is limited, the magnetic field antenna of the A4 point in such as figure possibly cannot cover the position of B1, B2 point, if but staff is in the upper right corner in figure, the magnetic field antenna being then in A1 point also possibly cannot cover, therefore, in order to cover the region under ore deposit near plant equipment 30 comprehensively, more magnetic field antenna can be set, to improve accuracy.
In addition, in figure 3, except corresponding deathtrap is set by boundary line 20, several region can also be set more, as by more peripheral position, boundary line 10 is set, thus when staff is in the region outside boundary line 10, alarm will not be carried out, during region before staff is in boundary line 10 and boundary line 20, carry out preliminary alarm, such as just carry out alarm, and the operation of plant equipment under ore deposit 30 is not disturbed, and when staff is in the region within boundary line 20, then while alarm, the operation of plant equipment 30 under control ore deposit, avoid threatening to staff.
More than be described with reference to the accompanying drawings technical scheme of the present invention, considered bad environments under mine, affect the visual field of personnel in the pit, earshot, there is the potential safety hazard of thrusting into.Therefore, the invention provides one close to early warning system, can warn close to the staff of plant equipment under ore deposit, avoid because working environment complicated under ore deposit causes personnel to accidentally injure.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. close to an early warning system, it is characterized in that, comprising:
At least one magnetic field antenna, to be arranged under ore deposit in plant equipment;
At least one sniffer, is arranged on it staff, for when sensing the magnetic field of described magnetic field antenna, generates corresponding magnetic field induction information;
Signal receiving device, for receiving the magnetic field induction information from described sniffer;
Treating apparatus, for when described signal receiving device receives described magnetic field induction information, judges that described staff is in the deathtrap of plant equipment under described ore deposit, and generates alert command;
Alarming apparatus, for carrying out alarm when receiving described alert command;
Wherein, described magnetic field induction information comprises real-time magnetic field intensity;
Described treating apparatus comprises:
Numerical value change judging unit, judges the numerical value change of described real-time magnetic field intensity, if described real-time magnetic field intensity is in rising trend, then under described ore deposit forbidden by described treating apparatus, plant equipment moves, if on a declining curve, does not then process.
2. according to claim 1 close to early warning system, it is characterized in that, described treating apparatus also comprises:
Comparing unit, for more described real-time magnetic field intensity and default magnetic field intensity, wherein, when described real-time magnetic field intensity is more than or equal to described default magnetic field intensity, described treating apparatus judges that described staff is in described deathtrap.
3. according to claim 1 and 2 close to early warning system, it is characterized in that, the quantity of described magnetic field antenna is multiple, and each magnetic field antenna has different tranmitting frequencies, then described magnetic field induction information comprises the tranmitting frequency of real-time magnetic field intensity corresponding to multiple described magnetic field antenna and correspondence, and described treating apparatus also comprises:
Positioning unit, the magnetic field antenna that each real-time magnetic field intensity is corresponding is determined according to the tranmitting frequency in described magnetic field induction information, and the distance of described staff and each described magnetic field antenna is determined according to real-time magnetic field intensity, thus the relative position of plant equipment under determining described staff and described ore deposit, judge whether described staff is in described deathtrap for described treating apparatus according to described relative position.
4. according to claim 3 close to early warning system, it is characterized in that, also comprise:
Display unit, for showing the relative position of plant equipment under described staff and described ore deposit.
5. according to claim 3 close to early warning system, it is characterized in that, described treating apparatus also comprises:
Instruction judging unit, the instruction for performing as required judges the target location of plant equipment under described ore deposit, if described target location reduces causing the distance of plant equipment and described staff under described ore deposit, then forbids performing corresponding instruction.
6. according to claim 1 and 2 close to early warning system, it is characterized in that, the quantity of described sniffer is that multiple, different sniffers is used for responding to the magnetic field of described magnetic field antenna in different space planes.
7. according to claim 1 and 2 close to early warning system, it is characterized in that, described signal receiving device is arranged on the remote control of plant equipment under controlling described ore deposit.
8. according to claim 1 and 2 close to early warning system, it is characterized in that, described staff comprises multiple type, then describedly also comprise close to early warning system:
Setting device, for arranging the scope of described deathtrap for the staff of each type.
9. according to claim 8 close to early warning system, it is characterized in that, the staff of each type adopts corresponding frequency to send described magnetic field induction information, and described treating apparatus also comprises:
Frequency identification unit, the frequency for the magnetic field induction information received described signal receiving device identifies, to determine the type of corresponding staff.
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| CN201210363392.9A CN102877888B (en) | 2012-09-26 | 2012-09-26 | Proximity warning system |
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Effective date of registration: 20170105 Address after: 413000 Yiyang high tech Zone in the eastern part of the New District of integrated services building, Room 502, Hunan Patentee after: Yiyang science and Technology Achievement Transformation Service Center Patentee after: Sany Heavy Equipment Co.,Ltd. Address before: Yansai Lake Street 110027 economic and Technological Development Zone Liaoning city Shenyang province No. 31 Patentee before: Sany Heavy Equipment Co.,Ltd. |