JPH0637829B2 - Method and device for managing work conditions in the mine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method and an apparatus for suitably managing a work situation at a site of various underground works such as tunnel excavation work.

[Prior Art] The largest work process in tunnel construction is excavation work inside the tunnel. When performing this excavation work, there are many cases where the work progresses in a line work. However, since work is carried out in an extremely limited space, such as inside a tunnel (deep underground), even if the rationalization machinery / equipment input plan, skilled workers are input, management system is strengthened, etc. If a neck occurs, a lot of energy is required for its elimination and maintenance, so that it often has a negative effect in the end. In particular, in the work in the tunnel by the blasting method, in order to cope with the ultimate goal of increasing the construction speed of the tunnel construction, how quickly the sand and sand are removed after the blasting and the work is speeded up is an important focus. come.

On the other hand, the Applicant has developed a system as disclosed in Japanese Patent Publication No. 50-11843.
This system detects the noise at each work site, analyzes the characteristic value pattern peculiar to each work from the noise, and the work conductor and the construction manager make a comprehensive judgment promptly and accurately, and the work Orders and work instructions can be quickly transmitted to the end.

Although the system disclosed in Japanese Patent Publication No. 50-11843 is very useful, it has the following problems because it is based on noise detection.

First, it is difficult to distinguish between works whose noise characteristic value patterns are similar to each other.

Secondly, although a microphone is used for noise detection, the microphone is not suitable for use in an environment in which a large amount of dust is suspended or in an environment with high temperature and humidity, which may cause noise detection failure. is there.

Thirdly, the conversation of the worker is also detected as noise in the work, and thus a circuit configuration for cutting these is required.

Fourth, labor is required to manage the paper for recording the detected noise waveform and characteristic value pattern.

Of course, these problems can be solved by software by introducing a computer for controlling the system and incorporating a predetermined program. However, new effort is required to create the predetermined program.

Further, when the boring device disclosed in Japanese Patent Laid-Open No. 61-1792 is used, the boring speed is optimally controlled, but the purpose is different from the present application for managing underground work.

Further, Japanese Laid-Open Patent Publication No. 61-134495 is a control technique for propelling a buried pipe, and it is also impossible to manage the underground work situation.

[Problem to be Solved by the Invention] Therefore, an object of the present invention is to provide a method and a device for managing a working condition in a mine, which can be carried out in a central control room with a small amount of labor and a simple device.

[Means for Solving the Problems] According to the present invention, a vibration detection sensor is provided at a work site in a mine, and the sensor detects vibrations generated by various underground works in the mine to collect noise at the work site in the mine. Equipped with a device to collect the noise generated by various underground works, analyze the detected vibration with a characteristic value pattern specific to various underground works using an analysis device, analyze the data, and collect the collected noise for each work Data analysis is performed by comparing with a characteristic value pattern, and a predetermined control signal is transmitted to various work sites based on the result of the data analysis to monitor the work status of the work process. Provides management methods.

Further, according to the present invention, a vibration detecting sensor installed at a work site in the mine, a noise collector installed at the work site in the mine, and the detected vibration are characteristic value patterns specific to each work in the mine. A vibration analysis device for data analysis, a noise analysis device for analyzing collected noise into characteristic value patterns unique to each underground work, and a predetermined control signal to the work site based on the result of data analysis. And a display device for outputting.

[Explanation of effects] Therefore, the vibration detected by the vibration detection sensor installed at the work site is compared and analyzed by the vibration analysis device to the characteristic value pattern peculiar to various underground works, and the noise from the noise collector is analyzed. A noise-based analysis device compares and analyzes characteristic value patterns unique to each work, and based on the results, transmits a predetermined control signal to each work site to monitor the status of the work process. At this time, each work content is analyzed from the vibration from the vibration sensor and the noise from the noise collector, so even if one sensor or analysis device malfunctions due to noise, etc., it can be corrected properly. , Can manage highly accurate work situations.

Therefore, the work process progresses efficiently.

Embodiments Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an example of work analysis by the vibration detection sensor 10 of the underground work management system according to the present invention, which has a vibration detection sensor, that is, an acceleration sensor 10.
An output signal of the sensor 10 is input to a bandpass filter 14, a comparator 16 and a timer 18 via an amplifier 12, and after being subjected to a predetermined process, a central processing unit (C
PU) 20. The reference numeral 22 is the CPU 20.
Shows a memory provided in the. The output of the CPU 20 is input to the display device 32 in the central processing room via the modem 24, the communication cable 26, the modem 28, and the interface 30. Here, the upper blocks in FIG. 1 show the equipment installed in the mine, and the lower blocks show the equipment installed in the central control room.

The display device 32 displays, for example, various information such as a characteristic value pattern of vibration that differs for each type of work or the work content corresponding to the pattern.

By examining this various information, the supervisor in the central control room can easily and accurately determine what kind of work is currently performed at the work site, and grasp the progress of the underground work. Can be done.

FIG. 2 illustrates an example of the hardware of the system using the present invention, in which the output of the acceleration sensor 10 is the band pass filters 14-1, 14-2, ... 14-N, CPU2.
It is input to the work analysis device 40 by vibration including 0 and the like. Then, from the interface 42 of the analysis device 40, the characteristic value pattern of vibration or the output signal corresponding thereto is transmitted to the display device 32 and the work equipment 44.

FIG. 3 shows a work analysis device 40 or CPU by vibration.
20 shows the configuration of the software incorporated in 20.
A work type recognition program P1 is incorporated in the vibration-based work analysis device 40. The program P1 is composed of a data input / output, a communication control program P2, a frequency characteristic determination program P3, a pattern determination program P4, and the like. Here, the frequency characteristic determination program P3
Is a program for comparing the various frequency characteristics as indicated by the symbols P3-1 ... P3-N with the frequency characteristics peculiar to various operations to determine the type of operation. Then, the pattern determination program P4 has a code P4-1 ...
A program for comparing various vibration patterns with patterns unique to various works as indicated by P4-N to determine the type of work.

On the other hand, as shown by the dotted line in FIG. 3, the work analysis device 40 based on vibration has an inverter control program P5, a traffic signal control program P6 for controlling the operation of the working equipment 44 (FIG. 2) inside and outside the mine, and a display. A display device control program P7 for controlling the device 32 (FIG. 1) or 32A (FIGS. 4 and 5) is also incorporated.

Next, with reference to FIG. 4, an aspect in which the management system using the present invention manages the operation of transporting the excavated earth and sand by the work equipment, that is, the truck 44A to the soil disposal site will be described.

In FIG. 4, the vibration caused by the operation of the truck 44A is detected by the acceleration sensor 10 in the mine (T),
The output is input to the work analysis device 40 based on vibration.
Through a predetermined process, a predetermined output signal is transmitted from the vibration-based work analysis device 40 to a fan 48A for controlling ventilation in the mine via an inverter 46, or a signal facility 48 for supporting operation control of the truck 44A, a wellhead. Display device 32A, operation main device 5 in the central processing chamber 50
2 is output. Then, the display device 32 shows various kinds of information to the operator or the work manager. Based on this information, the administrator issues a necessary command from the wireless paging station 54. This command is issued by the coaxial cable 56, telephone 60,
It is transmitted to the site worker in the mine (including the driver of the truck 44A) via the wireless distributed transmitter / receiver 62 and the portable wireless device 64 or the in-vehicle wireless device 66. On the other hand, the information from the site worker also includes the coaxial cable 56 and the wireless paging station 5.
4 is transmitted to the administrator. In addition to this, the track 44A is provided with an issuing element 68, and the light receiving element 70 detecting the light emitted from the track 44A provides information indicating the position of the track 44A to the cable 72 and the performance management main unit 74. It is transmitted to the manager in the central processing room 50 via.

FIG. 5 shows the management system of FIG. 4 more specifically, and the same reference numerals are used for the same parts as in FIG. In addition, the code | symbol O in FIG. 5 shows the site worker in a mine.

FIG. 6 shows an embodiment of the present invention.

In FIG. 6, the vibration shown in the lower stage is detected and data is analyzed into characteristic value patterns peculiar to various underground works. The CPU 20 of the analyzer 40 by vibration detects the noise shown in the upper stage and detects the work from the noise pattern. Noise analysis device 8
2 is connected. The CPU 20 is connected to the work type recognition circuit 32 and is configured to transmit various control signals. For this noise, the analysis device 82 can use the technique described in Japanese Patent Publication No. 50-11843. That is, the noise analysis device 82 includes an amplifier 84 for amplifying the output of the microphone 80, a frequency analyzer 86, a work content analyzer 88, a timer 90, and a recorder 92.

During operation, the microphones 80 installed at various work sites detect noise, and the output is subjected to predetermined processing by the above-mentioned devices and analyzed into a unique noise pattern.
It is input to U20 and recorded in the recorder 92.

Since this noise pattern differs depending on the type of work or work equipment, the work content and work equipment can be known by comparing with the noise patterns of various work and work equipment already stored in the CPU 20, but the microphone 80 is used by the worker. Since conversations and the like are also detected as noise, the noise pattern may indicate erroneous work.

Therefore, the accuracy is improved by checking with the analysis device 40 based on the data from the vibration detection sensor 10.

Further, it is preferable that the vibration detecting sensor 10 and the microphone 80 are arranged at the work site so that the above-mentioned check can be effectively performed.

EFFECTS OF THE INVENTION Since the present invention is configured as described above, (1) Judgment is made based on both vibration and noise, so there is no detection error of work noise due to noise, and there is no error in control.

(2) Since a vibration sensor is used, it can be used even at a work site where it is difficult to detect noise with a microphone, such as a large amount of dust floating or high temperature and high humidity.

(3) Since the noise is detected along with the vibration, it can be used even on soft ground where the vibration is easily attenuated, and can widely contribute to the efficiency of underground work.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of a vibration analysis part of a work management system of the present invention, FIG. 2 is a block diagram showing an embodiment of a management apparatus of the present invention, and FIG. 3 is a management using the present invention. FIG. 4 is a schematic view showing an example of software installed in the system, FIG. 4 is a schematic view showing a state in which the management system is implemented, and FIG. 5 is a perspective view more specifically showing the working state shown in FIG. FIG. 6 is a block diagram showing an embodiment of the present invention. 10 ... Vibration detection acceleration sensor, 14 ... Bandpass filter, 16 ... Comparator, 18 ... Timer, 20 ...
... CPU, 32, 32A ... Display device, 40 ... Vibration analysis device, 50 ... Central control room, 80 ... Microphone, 82 ... Noise analysis device, T ... Downhole

 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Susumu Takano 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (56) Reference JP-A-61-1792 (JP, A) JP Sho 61-134495 (JP, A) Japanese Patent Sho 50-11843 (JP, B1)

Claims (2)

[Claims] 1. A vibration detecting sensor is provided at a work site in a mine to detect vibration generated by various underground works in the mine, and a noise collector is provided at a work site in the mine to generate vibration by various underground works. Data analysis is performed by collecting noise, comparing the detected vibration with characteristic value patterns unique to various underground works by an analyzer, and comparing collected noise with characteristic value patterns unique to each work. Then, based on the result of the data analysis, a predetermined control signal is transmitted to various work sites, and the work status of the work process is monitored. 2. A vibration detection sensor installed at a work site in a mine, a noise collector installed at a work site in the mine, and the detected vibration in a characteristic value pattern peculiar to each work in the mine. Vibration analysis device for analysis, noise analysis device for analyzing collected noise into characteristic value patterns peculiar to each underground work, and output predetermined control signal to work site based on the result of data analysis A mine work status management device characterized by being provided with a display device.