Adjustment device

Abstract

To provide a technique that can facilitate the installation of an infrared sensor.SOLUTION: An adjustment device used to determine the installation position when installing an infrared sensor for surveillance comprises a transmitting device having a transmitter that emits infrared rays, a self-supporting structure, and a direction confirmation mechanism that determines a direction of infrared emission, and a receiving device having a receiver that receives infrared rays, a mechanism that can adjust a height of the receiving device vertically so as to match the height of the transmitter, a direction confirmation mechanism that can confirm a direction of light reception of the receiver, and an indicator that indicates infrared reception with at least one of sound and light when infrared rays from the transmitter are received.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present disclosure relates to an adjustment device and is applicable to an adjustment device used for positioning an infrared sensor, for example. [Background technology]

[0002] Infrared sensors are sometimes used in surveillance systems (for example, see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-44692 Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present disclosure is to provide a technique that can facilitate the installation of an infrared sensor. [Means for solving the problem]

[0005] A brief overview of representative aspects of this disclosure is as follows. In other words, when installing an infrared sensor for surveillance, an adjustment device used to determine the installation position comprises a transmitting device having a transmitter that emits infrared rays, a self-supporting structure, and a direction confirmation mechanism that determines the direction of infrared radiation, and a receiving device having a receiver that receives infrared rays, a mechanism that can adjust the height of the transmitter up and down, a direction confirmation mechanism that can confirm the direction of light reception of the receiver, and an indicator that indicates with at least one of sound and light when infrared rays from the transmitter are received. Effect of the Invention

[0006] According to the present disclosure, it is possible to facilitate installation of an infrared sensor. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a diagram illustrating an infrared sensor used in a surveillance system. [Diagram 2] FIG. 2 is a diagram illustrating an infrared sensor used in a surveillance system. [Diagram 3] FIG. 3 is a diagram for explaining the problems with infrared sensors. [Figure 4] FIG. 4 is a diagram for explaining the problems with infrared sensors. [Diagram 5] FIG. 5 is a diagram illustrating an adjustment device in a comparative example. [Figure 6] FIG. 6 is a diagram showing the configuration of an adjustment device in the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, the embodiments will be described with reference to the drawings. However, in order to clarify the description, the following description and drawings are omitted and simplified as appropriate. In addition, the same components are given the same reference numerals, and repeated description may be omitted.

[0009] First, an infrared sensor used in a surveillance system will be described with reference to Figures 1 and 2. Figures 1 and 2 are diagrams for explaining an infrared sensor used in a surveillance system.

[0010] Infrared sensors are classified into passive and active infrared sensors according to the detection method. Passive infrared sensors detect intruders by receiving infrared rays from the outside. Active infrared sensors emit infrared rays themselves and detect reflections or when the light is blocked. In opposed blocking type sensors, the light emitting element and the light receiving element are placed in different locations, and if there is an object blocking the gap between the light emitting element and the light receiving element, it is determined to be an intruder.

[0011] As shown in Fig. 1, the infrared sensor 10 that is the subject of the present disclosure is the above-mentioned pass-through sensor, and is configured by installing an infrared sensor body 12 provided on a concrete foundation 11 and an infrared sensor body 14 provided on a concrete foundation 13 facing each other. As shown in Fig. 2, the infrared sensor body 12 has transmitters 121, 122 that emit (transmit) infrared rays (INF). The infrared sensor body 14 has receivers 141, 142 that receive (receive) the infrared rays. The infrared sensor 10 determines an intrusion when a person P or the like blocks (blocks) the infrared rays, and issues an alarm.

[0012] Next, problems that may occur when installing the infrared sensor 10 will be described with reference to Figures 3 and 4. Figure 3 is a diagram showing the infrared sensor passing under the object, and Figure 4 is a diagram showing the infrared sensor jumping over the object.

[0013] When installing the infrared sensor 10, the sensor may be placed in a location where a necessary security zone can be secured based on the drawing. In this case, information on the specific topography of the installation location may not be reflected.

[0014] For example, as shown in Fig. 3, if there is a depression DP between the infrared sensors 10 (between the infrared sensor body 12 and the infrared sensor body 14), the depression DP may be used to allow the infrared rays to escape. Also, as shown in Fig. 4, if the infrared sensors are installed close to a fence F or wall W, the fence F or wall W may be used to allow the infrared rays to escape, or structures or vegetation may block the light. For these reasons, the desired security zone may not be secured properly. In this case, it may become necessary to change (relocate) the position of the infrared sensor 10 or install an additional infrared sensor to make up for the gaps.

[0015] Next, a technique (comparative example) that the present disclosure examines prior to the present disclosure will be described with reference to Fig. 5. Fig. 5 is a diagram illustrating an adjustment device in the comparative example.

[0016] When a site survey is conducted in advance, the distance of the infrared sensor 10 may be 100 m or more, and visual confirmation by the surveyor may cause the above problems when actually installed. For this reason, an adjustment device for installing the infrared sensor is used.

[0017] The adjustment device 20 in the comparative example is composed of poles 21, 22 and strings 23, 24. The poles 21, 22 are erected at the planned installation location of the infrared sensor 10, and the strings 23, 24 are stretched between the infrared transmission position TP and the infrared reception position RP. Then, an investigator can visually check whether there are any gaps that can be slipped through, whether the sensor is too close to the fence F, and whether there are any structures or vegetation that block the light.

[0018] However, the surveillance zone of the infrared sensor 10 is up to 200 m, and although infrared rays travel in a straight line, it is difficult to stretch the strings 23, 24 without sagging. In addition, the strings 23, 24 are thin and difficult to see. In addition, it is very time-consuming to wind and stretch the strings 23, 24 to prevent them from getting tangled, making it difficult to investigate multiple locations.

[0019] An adjustment device for installing an infrared sensor in an embodiment will be described with reference to Fig. 6. Fig. 6 is a diagram showing the configuration of the adjustment device in an embodiment.

[0020] The adjustment device in the embodiment allows the installation location of an infrared sensor to be easily determined when the infrared sensor is to be installed in a surveillance system. In addition, the adjustment device in the embodiment allows the user to easily check for infrared blocking, loss, and interference, making it easy to confirm the correct installation location.

[0021] The adjustment device 30 in this embodiment is made up of a device (transmitting device) 31 on the transmitting side and a device (receiving device) 32 on the receiving side.

[0022] The transmitting device 31 includes a support part 312 provided on a self-supporting leg 311, transmitters 313, 314 that emit (transmit) infrared rays (INF) provided on the support part 312, and a direction confirmation mechanism 315. The support part 312 is extended and fixed in the vertical direction by the self-supporting leg 311. The transmitters 313, 314 are attached to the support part 312 so that their transmission direction (radiation direction) is perpendicular to the extension direction of the support part 312. The direction confirmation mechanism 315 can confirm the direction in which the radiation directions (horizontal direction) of the transmitters 313, 314 are facing. The transmitting device 31 is a self-supporting structure and can determine the radiation direction of infrared rays.

[0023] The receiving device 32 includes a support part 322, receivers 323, 324 and a direction confirmation mechanism 325 that receive infrared rays and are provided on the support part 322, and indicators 328, 329. The support part 322 includes a self-supporting stand 321, wheels 326, and a handle 327. Since the receivers 323, 324 are supported by the self-supporting stand 321, the receiving device 32 can continuously receive infrared rays without changing the height of the receivers 323, 324 by rolling the wheels 326. The receiving device 32 has a mechanism that can adjust the receivers 323, 324 up and down to match the height of the transmitters 313, 314. The support part 322 is fixed by the self-supporting stand 321 while extending in the vertical direction. The receivers 323, 324 are attached to the support part 322 so that their receiving directions (light receiving directions) are perpendicular to the extending direction of the support part 322. The direction confirmation mechanism 325 can confirm the direction in which the light receiving direction (horizontal direction) of the receivers 323 and 324 is facing.

[0024] A method for checking the installation position of the infrared sensor 10 using the adjustment device 30 will be described.

[0025] When installing the infrared sensor 10, the transmitter 31 is first installed at the planned installation location in order to determine the location, and then the receiver 32 is placed at the opposite installation location.

[0026] Using the direction confirmation mechanism 315 of the transmitting device 31, the transmitting direction of the transmitters 313, 314 of the transmitting device 31 is directed toward the installation location of the receiving device 32. Next, the light receiving surfaces of the receivers 323, 324 of the receiving device 32 are directed toward the transmitting device 31.

[0027] When the infrared rays transmitted from the transmitters 313, 314 are received by the receivers 323, 324, the indicators 328, 329 linked to the receivers 323, 324 notify the reception by at least one of sound and light. In this way, by the receivers 323, 324 receiving the infrared rays, it can be confirmed that there is nothing blocking the infrared rays.

[0028] Next, while moving the receiver 32 toward the transmitter 31, the infrared irradiation position is confirmed while checking the indicators 328, 329. At this time, the receiver 32 can be moved on wheels 326, so that the infrared irradiation position can be confirmed continuously and without missing anything without changing the height. If the wheels 326 cannot be used, it is also possible to move the receiver 32 toward the transmitter 31 while checking several pinpoints.

[0029] If there is a depression, the receivers 323, 324 will be lowered by the amount of the depression, and will no longer receive light. By lifting the receiver up to a place where light can be received, it is possible to confirm that a drop in height has occurred. This makes it possible to suggest the need for topographical improvement within the depression, etc.

[0030] It is said that the installation position of the infrared sensor 10 needs to be such that the distance from a structure such as a fence F is equal to the length of the fence F when it is knocked down. Therefore, when the position of the transmitter 31 approaches a fence, the distance from the fence F can be known by measuring how far the transmitter 31 is from the fence.

[0031] Some types of infrared sensor 10 use multiple transceivers and have multiple infrared security lines, but this can be easily accommodated by adjusting the number of transceivers and the height of the sensor.

[0032] In addition, when an infrared sensor is installed on a slope or the like, the infrared warning line will be at an angle, but this can be accommodated by giving the receiver 32 a vertical height adjustment function according to the angle between the transmitters 313, 314 and the receivers 323, 324 and the distance between the transmitter 31 and the receiver 32.

[0033] When moving the receiving device 32, a white line may be drawn with powder or the like to make it easier to see.

[0034] The disclosure made by the present inventor has been specifically described above based on the embodiments, but it goes without saying that the present disclosure is not limited to the above-described embodiments and can be modified in various ways. [Explanation of symbols]

[0035] 30...adjustment device 31 Transmitting device 311...Standing legs 312...Support part 313,314...Transmitter 315... Direction confirmation mechanism 32 Receiving device 321...Self-supporting stand 322...Support part 323,324...Receiver 325... Direction confirmation mechanism 326...Wheel 327 Handle 328,329...display device

Claims

1. An adjustment device used to determine the installation position when installing an infrared sensor for monitoring, comprising: A transmitting device having a transmitter that emits infrared rays, a self-supporting structure, and a direction confirmation mechanism that determines the direction of infrared radiation; a receiving device having a receiver for receiving infrared rays, a mechanism for adjusting the height of the transmitter up and down, a direction confirmation mechanism for confirming the light receiving direction of the receiver, and an indicator for indicating at least one of sound and light when the infrared rays from the transmitter are received; An adjustment device comprising:

2. 2. The adjustment device of claim 1, wherein the receiving device further comprises wheels that enable the receiving device to be moved without changing the height of the receiver.

3. An adjustment device as described in claim 1 or 2, wherein the vertically adjustable mechanism is capable of adjusting the vertical height of the receiver depending on the angle between the transmitter and the receiver and the distance between the transmitter and the receiver when the sensor has an infrared warning line that is diagonal in the vertical direction.

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