JP2001330682A - Human body detector for mobile unit mounted - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a detection mistake when detecting a human body existing close to a mobile unit. SOLUTION: This human body detector comprises a structure, which determines an actually measured two-dimensional pattern corresponding to the two-dimensional distribution pattern of strength information of a detecting signal in a two-dimensional scanning area AR, that is produced by the view of an infrared detection array 4 which changes in the back-and-forth direction HD of a forklift (mobile unit) 2, and then detects the human body, when the determined actually measured two-dimensional pattern is compared with a preset model two-dimensional pattern to match with the preset pattern. Accordingly, this device is an advanced detection method, that determines by comparing both patterns of the same two-dimensional image to enable full preventing a detection mistake when detecting a human body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving body mounted human body detecting device mounted on various moving bodies such as passenger cars, trucks, forklifts and security robots for detecting a human body near the moving body. The present invention relates to a technique for preventing a detection error when detecting a human body.

[0002]

2. Description of the Related Art Conventionally, there are an active type and a passive type as a human body detecting device mounted on a moving body (hereinafter abbreviated as "human body detecting device" as appropriate). The former active system irradiates a search beam such as visible light, near-infrared light, microwave, or ultrasonic wave, and measures the reflected beam intensity.
It is configured to detect a human body in the vicinity of the moving body based on the increase or decrease of the measured value of the reflected beam intensity. However, in the case of the active method, since the search beam needs to have strong directivity, the beam is narrow, the detection field of view is narrow, and the beam intensity decreases in proportion to the square of the distance between the moving body and the human body. Therefore, the detection distance is short, and it is very difficult to distinguish between a human body and an object other than the human body.

On the other hand, the latter passive type device has a structure in which infrared rays emitted from a human body are sensed by an infrared detecting element, and a human body is detected based on the level of the sensing level. Since the human body is detected using infrared light, there is no need to irradiate a search beam, and the problem in the active method is solved.

[0004]

However, the above-mentioned conventional passive type apparatus has the following inconveniences. That is, sunlight, heat sources that radiate disturbance infrared rays, and background objects (buildings, luggage, machinery, etc.) heated by sunlight
For example, an infrared detection element reacts to infrared light from a body other than the human body, and a detection error occurs. Some measures have been considered, such as cutting sunlight with an optical filter or limiting the detection temperature area to around the human body temperature to make it less responsive to infrared rays from other sources. In the current situation, countermeasures are not very effective for heat sources or background objects having a temperature close to the body temperature of the human body to be detected, and the detection error is not sufficiently prevented.

In view of the above circumstances, an object of the present invention is to provide a human body detecting device for mounting a moving body, which can sufficiently prevent a detection error when detecting a human body.

[0006]

According to a first aspect of the present invention, there is provided a human body detecting apparatus for mounting a moving body, which is mounted on the moving body and senses infrared rays radiated from the human body. In the human body detection device for mounting a mobile body configured to detect a human body in the vicinity of the mobile body, a plurality of infrared detection elements having a directional visual field are linearly arranged along the height direction of the mobile body. An infrared detection array installed on the peripheral surface of the moving body, a signal capturing means for capturing a detection signal from the infrared detection array each time a signal capturing instruction is received, and an infrared detection array based on the detection signal captured by the signal capturing means. A two-dimensional measurement pattern corresponding to a two-dimensional distribution pattern of the intensity information of the detection signal in the two-dimensional scanning area generated by changing the visual field of the moving body in the horizontal direction is calculated. And measuring the pattern Motomede means, the measured two-dimensional scanning body area detected is obtained when there 2
A model pattern setting means for setting a model two-dimensional pattern corresponding to the two-dimensional pattern in advance, and a comparison between the measured two-dimensional pattern created by the measured pattern finding means and the model two-dimensional pattern set by the model pattern setting means. Pattern comparing means for determining whether the two patterns match or not.

According to a second aspect of the present invention, in the human body detecting device for mounting a moving body according to the first aspect, the infrared detection array is installed in a fixed state with respect to the moving body and is proportional to the moving speed of the moving body. And a capture command cycle varying means for changing the generation cycle of the signal capture command.

According to a third aspect of the present invention, there is provided the human body detecting device for mounting a moving body according to the first or second aspect, wherein a field of view dividing means for dividing a directional field of view of each infrared detecting element into a plurality of fields of view. Signal intensity change detecting means for detecting that an intensity change has occurred in the detection signal of each infrared detection element while the movement of the field of view of the infrared detection array is stopped.

[Operation] Next, the operation of the human body detecting device for mounting a moving body of the present invention in a biological signal measuring device will be described. When the human body detecting device of the present invention is mounted on a moving body to detect a human body, first, a model two-dimensional pattern is set in advance by the model pattern setting means. And
In the human body detecting device in which the human body detecting operation has started, the signal capturing means sequentially captures detection signals according to a signal capturing command from an infrared detecting array in which a plurality of infrared detecting elements are linearly arranged along the height direction of the moving body. With
An actually measured pattern obtaining means obtains an actually measured two-dimensional pattern based on the received detection signal. The obtained measured two-dimensional pattern is compared with the model two-dimensional pattern by the pattern comparing means. If it is determined that the two patterns match, a human body in the vicinity of the moving object is detected. Conversely, if it is determined that the two patterns do not match, the human body is not detected.

In the case of the present invention, the actually measured two-dimensional pattern is
This corresponds to the two-dimensional distribution pattern of the intensity information of the detection signal in the two-dimensional scanning area generated when the field of view of the infrared detection array changes in the horizontal direction of the moving body, and substantially corresponds to the two-dimensional scanning area during the execution of the human body detection. This is a two-dimensional image pattern. On the other hand, the model two-dimensional pattern corresponds to an actually measured two-dimensional pattern obtained when a human body to be detected exists in the two-dimensional scanning area, and is also a two-dimensional image pattern. Therefore, the detection of the human body in the case of the present invention
Unlike the conventional simple method of determining by comparing the signal intensities of detection signals, it is an advanced method of determining by comparing two-dimensional image patterns, so that a detection error can be reliably avoided.

Further, in the human body detecting device according to the second aspect, the generation cycle of the signal capture command is changed in proportion to the moving speed of the moving body by the capture command cycle variable means.
That is, since the infrared detection array is arranged in a fixed state with respect to the moving object, the visual field moving speed of the infrared detection array in the horizontal direction of the moving object changes with the change in the moving speed of the moving object. When the moving speed of the moving body is high, the generation period of the signal fetching command is increased, and when the moving speed of the moving body is low, the generation period of the signal fetching command is also reduced, and the signal fetching position ( Since the distance does not change, the same measured two-dimensional pattern is always obtained even if the moving speed of the moving object is different, and pattern comparison with the model two-dimensional pattern can be performed quickly.

According to a third aspect of the present invention, the directional visual field of each infrared detecting element is divided into a plurality of visual fields by the visual field dividing means. If it is detected that the detection signal of the same infrared detection element has changed in intensity while the movement of the visual field is stopped, a human body has been detected.
That is, while the movement of the field of view of the infrared detection array is stopped, a two-dimensional scanning area does not occur, and a measured two-dimensional pattern cannot be obtained, so that a human body cannot be detected. When the field of view is divided into individual fields of view, the relationship between the blind spot (dead zone) of the field of view generated between the divided fields of view and the human body changes due to the movement of the human body within the field of view, and the same infrared detection element The intensity of the detection signal changes over time. The apparatus according to the third aspect of the present invention can detect a human body by using the change in signal intensity caused by the movement of the human body while the visual field of the infrared detection array stops moving.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an overall configuration of a mobile-body-mounted human body detection device according to an embodiment of the present invention. The human body detection device 1 of the embodiment shown in FIG. 1 is mounted on a forklift (moving body) 2 and configured to detect a human body 3 near the forklift 2 by detecting infrared radiation emitted from the human body. Device.

As shown in FIGS. 2 and 3, the human body detecting device 1 includes a plurality of infrared detecting elements 5 having a directional visual field VA (for example, a plurality of infrared detecting elements 5 along the height direction of the forklift 2).
8) an infrared detection array 4 arranged in a straight line, a signal capturing unit 6 for converting a detection signal from the infrared detection array 4 into a digital signal (AD-converted) and receiving the digital signal each time a signal capturing instruction is received; The visual field of the infrared detection array 4 changes in the front-back direction HD of the forklift 2 as the forklift 2 moves in the front-back direction (horizontal direction of the moving body) HD based on the detection signal taken by the signal-capturing unit 6. An actually measured pattern obtaining unit 7 for obtaining an actually measured two-dimensional pattern corresponding to a two-dimensional distribution pattern of the intensity information of the detection signal in the two-dimensional scanning area AR.
And a model pattern setting unit 8 that presets a model two-dimensional pattern corresponding to an actually measured two-dimensional pattern obtained when a human body to be detected is present in the two-dimensional scanning area, and compares the actually measured two-dimensional pattern with the model two-dimensional pattern And a pattern comparing section 9 for judging the coincidence / non-coincidence of the two patterns.

The human body detecting device 1 receives a detected speed signal from the moving speed detecting unit 10 for detecting the moving speed of the forklift 2 and changes the generation cycle of the signal fetching command in proportion to the moving speed of the forklift 2. In addition to a command cycle variable unit 11, a signal intensity change detection unit 12 for detecting that an intensity change has occurred in the detection signal of each infrared detection element 5 while the field of view of the infrared detection array 4 is stopped, and a pattern comparison unit 9 Alternatively, there is also provided a human body detection notification unit 13 that receives a signal output from the signal intensity change detection unit 12 and notifies the driver of the forklift 2 of the detection of the human body 3 by sound or light. Note that the infrared detection array 4 is fixedly installed on the side surface of the forklift 2, but the other components are mounted inside the forklift 2. Hereinafter, the configuration of each part of the human body detection device 1 will be described more specifically.

The infrared detection array 4 includes eight can-type infrared detection elements 5 having an optical filter for cutting visible light.
An array arranged as individual elements may be used, or eight all-infrared detecting elements 5 are collectively formed on one substrate, and a common optical filter is mounted on the front surface. It may be an integrated type array. In the case of the infrared detection array 4, as shown in FIG. 3, each of the infrared detection elements 5 has a cone-shaped directional visual field VA having a visual field angle θ of about 10 ° to 20 ° in front of a visual field of an adjacent element (for example, (1 m to 2 m forward) and are arranged at equal intervals so as to slightly overlap each other. Further, as shown in FIG. 4, each of the directional visual fields VA of each of the infrared detecting elements 5 is divided into a plurality of (for example, three) small visual fields VA by a mesh (visual field dividing means) 14.
1 to VA3. As shown in FIG. 5, three Fresnel lenses (visual field dividing means) 15 may be provided on the front surface of the infrared detecting element 5 to divide the directional visual field VA into three small visual fields VA1 to VA3. .

The infrared detecting element 5 includes a pyroelectric sensor, a thermal sensor such as a thermopile or a bolometer, or an MC.
A quantum sensor such as T (cadmium hydrogen telluride) or PbS is used. In the case of a pyroelectric sensor, as shown in FIG.
Two pyroelectric sensors DS are connected in series with opposite polarities, and one (the lower side in FIG. 6) pyroelectric sensor DS is shielded so that sunlight is cut off so as not to enter.
In addition, the configuration is such that the potential between both pyroelectric sensors DS is output via the transistor TR. Since the pyroelectric sensor DS is easily affected by temperature fluctuation, two pyroelectric sensors DS
Are connected in series with opposite polarities to cancel the influence of temperature fluctuation.

On the other hand, the measured pattern determining section 7 sets the intensity information “1” when the intensity of the captured detection signal is equal to or higher than a certain level, and sets the intensity information “0” when the intensity of the detection signal is lower than the certain level. While performing the pre-processing, the respective intensity information of the detection signals obtained by the same signal capture command are linearly arranged in accordance with the arrangement order of the infrared detecting elements 5, and the respective intensity information of the detection signals obtained by the different signal capture commands. The information is linearly arranged so that the intensity information of the same infrared detection element 5 is adjacent to the direction of arrangement of the intensity information according to the arrangement order of the infrared detection elements 5 in the direction perpendicular to the arrangement direction of the intensity detection information. Thus, an actually measured two-dimensional pattern is obtained.

An example of an actually measured two-dimensional pattern will be specifically described. FIG. 7 shows nine consecutive signal capture commands C1 to C1.
8 infrared detection elements 5a obtained in each of C9
5 to 5 h. Note that the infrared detecting elements 5a are located at the top of the array, and then descend to lower positions in alphabetical order. The measured pattern determining unit 7 sets the intensity information to “1” when the intensity of the detection signal is “2” or more, and sets the intensity information to “0” when the intensity of the detection signal is less than “2”. By arranging the intensity information in accordance with the arrangement order of the elements 5a to 5h and the generation order of the capture commands C1 to C9, an actually measured two-dimensional pattern shown in FIG. 8 is obtained. 8 to 11, black circles indicate intensity information “1”, and white circles indicate intensity information “0”.

The model two-dimensional pattern set in advance by the model pattern setting section 8 corresponds to an actually measured two-dimensional pattern obtained when a human body to be detected is present in the two-dimensional scanning area AR. In the case of, since strong infrared rays are emitted from the exposed portions of the head and both hands, for example, a model two-dimensional pattern as shown in FIG. 9 is set. As a setting method of the model two-dimensional pattern, a pattern obtained from the measured two-dimensional patterns corresponding to various human body postures obtained by the measured pattern obtaining part 7 with the human body standing at a predetermined position is set as the model two-dimensional pattern. A method of storing a pattern in the model pattern setting unit 7 is exemplified, but a model 2 created by a device separate from the human body detection device 1 is used.
A method of storing a dimensional pattern in the model pattern setting unit 7 may be used.

The pattern comparing section 9 compares the measured two-dimensional pattern with the model two-dimensional pattern.
Since the human body is not always located at the center of the two-dimensional pattern, the model two-dimensional pattern is compared with the actually measured two-dimensional pattern while moving in parallel to determine the coincidence / mismatch of the patterns. The measured two-dimensional pattern is model 2
Since the two-dimensional pattern is also a two-dimensional image pattern,
Pattern comparison can be performed according to a normal image comparison method. Of course, when it is determined that both patterns match, a human body has been detected, and when it is determined that both patterns do not match, a human body has not been detected.

In the case of the human body detection device 1, the generation cycle of the signal capture command is changed by the capture command cycle variable section 11 in proportion to the moving speed of the forklift 2. In other words, if the moving speed of the forklift 2 is high, the generation cycle of the signal fetch command becomes fast, and the forklift 2
If the moving speed is slow, the generation cycle of the signal fetch command is delayed. If the signal capture command generation cycle is always constant regardless of the moving speed of the forklift 2,
As the moving speed of the forklift 2 changes, the signal capturing position (distance) in the horizontal direction of the two-dimensional scanning area changes.
The dimensional pattern changes. For example, in FIG. 8, when the moving speed of the forklift 2 is reduced to half, the signal take-in distance is shortened, resulting in an actually measured two-dimensional pattern elongated horizontally as shown in FIG. Conversely, when the moving speed of the forklift 2 is doubled, the signal take-in distance becomes longer, and as shown in FIG. 11, an actually measured two-dimensional pattern is contracted horizontally.

However, in the case of the human body detecting device 1 of the embodiment,
When the moving speed of the forklift 2 is reduced by half, the generation period of the signal capture command is also reduced by half, so that the signal capture position (distance) in the horizontal direction of the two-dimensional scanning area.
Is the same as the case of the original speed and does not change.
A dimensional pattern is determined. Further, when the moving speed of the forklift 2 is doubled, the generation cycle of the signal fetching command is also doubled, so that the signal fetching position (distance) in the horizontal direction of the two-dimensional scanning area is the same as that at the original speed. The same measured two-dimensional pattern as in FIG. 8 is obtained without any change. Thus, in the case of the human body detection device 1 of the embodiment,
Even if the moving speed of the forklift 2 is different, the same actually measured two-dimensional pattern is always found, so that the pattern comparison between the actually measured two-dimensional pattern and the model two-dimensional pattern can be performed quickly.

Further, the signal intensity change detecting section 12 detects that the intensity change has occurred in the detection signal taken in with respect to the same infrared detecting element 5 while the movement of the visual field of the infrared detecting array 4 is stopped. For example, the intensity of a detection signal of a certain infrared detection element 5 at a certain time is “6”, and the intensity of a detection signal obtained by the next signal acquisition command is, for example, “5” or “7”. If it is different from "6", it is detected that the detection signal has changed in intensity. While the forklift 2 is stopped and the movement of the field of view of the infrared detection array 5 is stopped, no two-dimensional scanning area is generated,
Since a two-dimensional pattern of the human body cannot be obtained because a two-dimensional pattern cannot be obtained, each infrared detecting element 5
When the directional visual field VA is divided into three small visual fields VA1 to VA3, the blind spot of the visual field generated between the divided small visual fields VA1 to VA3 due to the movement of the human body in the visual field and the human body And the intensity of the detection signal of the same infrared detection element 5 changes, and the change of the signal intensity is used to prevent the human body from moving even while the visual field of the infrared detection array 4 stops moving. Detection can be performed.

Next, the operation of the apparatus for detecting the human body 3 near the forklift 2 by the human body detection apparatus 1 of the embodiment will be described with reference to FIG. FIG. 12 is a flowchart showing a human body detection process by the apparatus of the embodiment. It is assumed that the model two-dimensional pattern has been set. [Step S1] It is checked whether the forklift 2 is stopped or moving. If it is stopped, the process proceeds to step S2, and if it is moving, the process proceeds to step S4.

[Step S2] Signal strength change detecting section 12
Checks whether there is a change in the intensity of the detection signal. If there is no change in the strength of the detection signal, no human body has been detected, and the process returns to step S1. If there is a change in the strength of the detection signal, the process proceeds to step S3.

[Step S3] After the human body detection notifying section 13 notifies that the human body has been detected, the process returns to step S1.

[Step S4] Based on the detection signals obtained one after another as the forklift 2 moves, the actually-measured pattern determining section 7 finds an actually-measured two-dimensional pattern.

[Step S5] The pattern comparing section 9 judges whether the actually measured two-dimensional pattern matches the model two-dimensional pattern. If the two patterns do not match, no human body has been detected, and the process returns to step S1. If the two patterns match, the process proceeds to step S6.

[Step S6] After notifying that the human body detection notifying section 13 has detected a human body, the process returns to step S1.

As described above, the human body detection method by the human body detection device 1 of the embodiment is not a simple method of judging by comparing the signal intensities of the detection signals as in the conventional method, but a so-called two-dimensional image pattern. Since the method is an advanced method of judging by comparing each other, detection errors can be sufficiently prevented.

The present invention is not limited to the above embodiment, but can be modified as follows.

(1) In the embodiment, the infrared detection array is provided on the side surface of the forklift, but the infrared detection array is not limited to the side surface of the forklift, and may be provided on the front surface or the back surface.

(2) In the infrared detection array of the embodiment, the infrared detection elements are arranged in a single row along the height direction of the forklift. A configuration in which a plurality of rows are arranged along the direction may be used.

(3) In the embodiment, the infrared detection array is installed in a fixed state, and the two-dimensional scanning area is generated in accordance with the movement of the forklift. A modification example in which the two-dimensional scanning area is installed so as to be capable of swinging in the direction (i.e., direction) and the swinging movement of the infrared detection array is generated. This modification is effective when the infrared detection array is installed on the front or back of a forklift.

(4) The comparison between the actually measured two-dimensional pattern and the model two-dimensional pattern may be executed by a neural network method or a multivariate analysis method for preparing various kinds of model two-dimensional patterns and comparing the patterns. .

(5) In the embodiment, the human body detecting device is mounted on a forklift. However, the human body detecting device of the present invention can be mounted on various moving objects other than forklifts such as passenger cars, trucks and security robots. Needless to say.

[0038]

As described in detail above, according to the human body detecting apparatus for mounting a moving body according to the first aspect of the present invention, the field of view of the infrared detection array is generated by changing the field of view of the moving body in the horizontal direction. A measured two-dimensional pattern corresponding to the two-dimensional distribution pattern of the intensity information of the detection signal in the two-dimensional scanning area is obtained, and the obtained measured two-dimensional pattern is obtained when the detection target human body exists in the two-dimensional scanning area. Observed 2
Model 2 set to correspond to the dimensional pattern
Compared with the dimensional pattern, if both patterns match, a human body in the vicinity of the moving object is detected, and a simple determination is made by comparing the signal intensities of the detection signals as in the conventional case. Since it is not a detection method but an advanced detection method that is determined by comparing two-dimensional image patterns, it is possible to sufficiently prevent a detection error when detecting a human body.

According to the second aspect of the present invention, the moving period of the moving object is changed by changing the generation period of the signal input command in proportion to the moving speed of the moving object. Even if the moving speed of the field of view of the infrared detection array in the horizontal direction of the moving object changes due to the speed change, the signal capturing position (distance) in the horizontal direction of the two-dimensional scanning area does not change. Since the same actually measured two-dimensional pattern is always obtained even if the moving speed of the model is different, the pattern comparison with the model two-dimensional pattern is quickly performed.

According to the third aspect of the present invention, the directional visual field of each infrared detecting element is divided into a plurality of visual fields and the visual field of the infrared detecting array. While the movement of the field of view is stopped, a change in the intensity of the detection signal of the same infrared detection element due to the movement of the human body in the field of view is detected. A human body can be detected by detecting a change in intensity.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an overall configuration of a human body detection device according to an embodiment.

FIG. 2 is a schematic diagram showing a two-dimensional scanning area obtained by moving a field of view of an infrared detection array.

FIG. 3 is a schematic diagram illustrating a directional field of view of an infrared detection element according to an example.

FIG. 4 is a schematic diagram showing a divided state of a directional visual field of the infrared detecting element of the example.

FIG. 5 is a schematic diagram showing another state of division of the directional field of view of the infrared detection element of the example.

FIG. 6 is an equivalent circuit diagram of an infrared detecting element using a pyroelectric sensor.

FIG. 7 is a schematic diagram showing the intensity of a detection signal taken from an infrared detection array.

FIG. 8 is a schematic diagram showing an actually measured two-dimensional pattern obtained in the embodiment.

FIG. 9 is a schematic diagram showing a model two-dimensional pattern set in the embodiment.

FIG. 10 is a schematic diagram showing a reference example of an actually measured two-dimensional pattern.

FIG. 11 is a schematic diagram showing another reference example of the actually measured two-dimensional pattern.

FIG. 12 is a flowchart illustrating a human body detection process by the human body detection device according to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Human body detection device 2 ... Forklift 3 ... Human body 4 ... Infrared detection array 5 ... Infrared detection element 5a-5h ... Infrared detection element 6 ... Signal taking-in part 7 ... Measured pattern finding part 8 ... Model pattern setting part 9 ... Pattern comparison Unit 10: Moving speed detection unit 11: Acquisition command cycle variable unit 12: Signal intensity change detection unit 14: Mesh 15: Fresnel lens VA: Directional visual field VA1 to VA3: Small visual field C1 to C9: Signal capturing command

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 2G065 AA11 AB02 BA02 BA11 BA12 BA13 BA14 BA33 BC11 BC13 BC14 BC22 BC33 CA05 DA20 2G066 AC13 BA03 BA08 BA09 BA12 BA26 BB01 BC04 BC21 CA08

Claims (3)

[Claims] A human body detection device mounted on a moving body and configured to detect a human body in the vicinity of the moving body by sensing infrared rays radiated from the human body. A plurality of infrared detecting elements having a linear array along the height direction of the moving body, and an infrared detecting array installed on the peripheral surface of the moving body, and a detecting signal from the infrared detecting array every time a signal capturing instruction is received. The two-dimensional distribution pattern of the intensity information of the detection signal in the two-dimensional scanning area generated when the visual field of the infrared detection array changes in the horizontal direction of the moving object based on the signal capturing means to capture and the detection signal captured by the signal capturing means. Means for obtaining a corresponding actually measured two-dimensional pattern;
Model pattern setting means for presetting a model two-dimensional pattern corresponding to an actually measured two-dimensional pattern obtained when a human body to be detected is present in the three-dimensional scanning area, and an actually measured two-dimensional pattern and a model created by the actually measured pattern finding means A human body detection device for mounting on a moving body, comprising: a pattern comparison unit that compares the two-dimensional pattern with a model two-dimensional pattern set by a pattern setting unit to determine whether the two patterns match or not. 2. The human body detecting device for mounting a moving body according to claim 1, wherein the infrared detection array is installed in a fixed state with respect to the moving body, and generates a signal capture command in proportion to a moving speed of the moving body. A human body detection device for mounting on a moving object, comprising a capturing command cycle changing means for changing a cycle. 3. A human body detecting apparatus for mounting a moving body according to claim 1, wherein said visual field dividing means divides a directional visual field of each infrared detecting element into a plurality of visual fields, and a visual field of an infrared detecting array. A human body detection device mounted on a moving object, comprising: signal intensity change detection means for detecting that an intensity change has occurred in a detection signal of each infrared detection element while the movement is stopped.