A traffic sensor with adjustable light field range and high-efficiency emission.

Abstract

This invention discloses a passage sensor with adjustable light field range and high-efficiency emission, including a light field modulation circuit. The light field modulation circuit includes a light field switch, which enables an electronic switch assembly to turn individual light emitting units within the light emitting section on or off. Multiple light emitting units can individually project light beams at different angles onto an emitting convex lens. The convex lens then radiates light fields at different angles to the automatic passage gate based on optical principles, allowing the light field switch to flexibly modulate the width and depth of the light field in front of the automatic passage gate. Furthermore, light receiving sections and spaced-apart light emitting sections are arranged in the same direction. Light reflected from the light field within the passage range is focused by a light receiving convex lens onto a light receiving unit, and the reflected light is converted into a photoelectric signal. This signal is then processed by a signal processing system to output a signal controlling the opening and closing of the automatic passage gate.

Description

Technical Field

[0001] This invention relates to a traffic sensor, and more particularly to a traffic sensor with an adjustable light field range and high-efficiency emission. Background Technology

[0002] Automatic access doors are generally used in locations requiring frequent entry and exit of people or vehicles (such as warehouses, passageways, banks, shopping malls, or company offices). An infrared light sensor mounted on the top of the door detects the entry or exit of a person or vehicle, driving a motor to open the automatic roller door or door panel. Once the person or vehicle has left, the sensor deactivates, and the automatic roller door or door panel closes. However, existing infrared access sensors mostly emit infrared light with a fixed projection field range, which cannot be flexibly adjusted to different passage ranges in the installation location. Furthermore, different passage range requirements often necessitate replacing sensors with different projection field ranges, causing inconvenience. Infrared access sensors used in automatic rolling doors also suffer from the same problem. In addition, when the light emitted by existing light sensors is projected onto a convex lens, it cannot effectively ensure that the optical axis of the LED beam is projected onto the center of the convex lens. Therefore, the LED beam cannot uniformly cover the convex lens, resulting in uneven light energy projected onto the sensing range, indirectly leading to uneven light intensity reflected back to the sensor within the same range. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a passage sensor with adjustable light field range and high-efficiency emission, which addresses the shortcomings of the prior art. This allows the light field switch to flexibly adjust the width and depth of the light field range in front of the automatic passage gate, and allows the emitted light to be uniformly radiated and covered on the emitting convex lens, so that the emitted light can be efficiently and individually projected onto the light field range in front of the automatic passage gate.

[0004] To address the aforementioned technical problems, this invention provides a passage sensor with adjustable light field range and high-efficiency emission. The sensor, used to control the opening or closing of an automatic passage gate, comprises: at least one light field modulation circuit, which includes at least one light field switch and multiple electronic switch components; and a sensing lens, which includes a light emitting portion and at least one adjacent light receiving portion. The light emitting portion includes multiple light emitting units and a emitting convex lens, and the light receiving portion includes multiple light receiving units and a light receiving convex lens composed of multiple convex lenses. The light field modulation... The light field switches within the circuit enable multiple electronic switch components to individually modulate the opening or closing of multiple light emitting units within the light emitting section, and project light beams at different angles onto the emitting convex lens. Based on optical principles, the emitting convex lens radiates the light beams into the light field range required by the automatic access gate. Within the passage range, the light field will be reflected by the intervention of external objects and reflected onto the light receiving convex lens within the light receiving section. Based on optical principles, the light beams are focused onto the light receiving unit, which converts the reflected light into electronic signals and outputs signals to control the opening and closing of the automatic access gate via a signal processing system.

[0005] Preferably, the optical field modulation circuit further includes at least one programmable microcontroller, which controls the programmable microcontroller to enable the plurality of electronic switching components to individually modulate the on or off of the optical emitting units within the optical emitting unit.

[0006] Preferably, the light emitting units are arranged in a row, and the row has at least one light emitting unit and projects light beams at different angles onto the emitting convex lens, which radiates the light beams to the light field range required by the automatic access gate based on optical principles.

[0007] Preferably, the light emitting units are arranged in two or more columns, each column having at least one light emitting unit, and projecting light beams at different angles onto the emitting convex lens, which radiates the light beams to the light field range required by the automatic access gate based on optical principles.

[0008] Preferably, the light emitting unit is an infrared emitting LED and the light receiving unit is an infrared receiving LED.

[0009] Preferably, the sensing lens includes a light emitting module, which includes a light emitting base and a light emitting carrier. The light emitting base includes a light emitting body with multiple mounting surfaces at different angles. The light emitting carrier includes multiple independent light emitting circuit boards, each of which faces the center of the emitting convex lens at a different angle and is electrically connected to form a combined light emitting circuit board. Multiple light emitting units are electrically disposed on the front side of the combined light emitting circuit board, and the back side of the combined light emitting circuit board is the mounting surface of the combined light emitting circuit board, which corresponds to the mounting surface of the base. The mounting surface of the combined light emitting circuit board and the mounting surface of the base are respectively coupled at the same angle. The optical axis of the light beam of each light emitting unit can be projected onto the center of the emitting convex lens in a near-optical coaxial relationship, and the light beam can uniformly cover the emitting convex lens.

[0010] Preferably, the light emitting combined circuit board is a plurality of independent individual circuit boards electrically connected to each other, or the light emitting combined circuit board is an integral structure, and multiple V-shaped grooves are cut on the back of the light emitting combined circuit board at the same position corresponding to the plurality of independent individual circuit boards. The V-shaped grooves enable the integral light emitting circuit board and the light emitting combined circuit board composed of independent individual circuit boards to be broken at the same position and electrically connected.

[0011] Preferably, the sensing lens includes at least one visible light emitting convex lens group and at least one visible light emitting unit. The visible light emitting units and the visible light emitting convex lens group project visible light based on optical principles to display the light field position of the operating range of the front edge of the automatic access gate.

[0012] Preferably, these visible light emitting units are visible light emitting LEDs or visible light lasers.

[0013] Preferably, the sensing lens includes a visible light emitting module, which includes a visible light carrier and a visible light emitting platform. The visible light carrier includes a visible light base, which has at least one visible light base mounting surface. The visible light emitting platform includes multiple independent visible light circuit boards, each of which faces the center of the visible light emitting convex lens at a different angle and is electrically connected to form a visible light combined circuit board. Multiple visible light emitting units are electrically disposed on the front side of the visible light combined circuit board. The back side of the visible light combined circuit board is the mounting surface of the light emitting combined circuit board and corresponds to the mounting surface of the visible light base. The mounting surface of the visible light base and the mounting surface of the light emitting combined circuit board are respectively coupled at the same angle. The optical axis of the beam of each visible light emitting unit is projected onto the center of the visible light emitting convex lens group, so that the visible light can be uniformly covered on the emitting convex lens.

[0014] Preferably, the visible light combined circuit boards are multiple independent circuit boards that are electrically connected to each other, or the visible light combined circuit board is an integral structure, with multiple V-shaped grooves cut on the back of the visible light combined circuit board at the same position corresponding to the independent circuit boards. The V-shaped grooves enable the integral visible light combined circuit board and the individual visible light combined circuit boards to bend and electrically connect at the same position.

[0015] Preferably, the sensing lens includes a near-light receiving portion, a light emitting portion, and a wide-area light receiving portion. The near-light receiving portion, the light emitting portion, and the wide-area light receiving portion emit and receive light in the same direction, and are separated and connected to each other to form the sensing lens. The light in the light field projection range of the light emitting portion is reflected to form a near-light receiving ray and a wide-area light receiving ray. The light field projection range of the light emitting portion will respectively establish a light emission and reception correspondence with the near-light receiving ray and the wide-area light receiving ray. The sensing lens can individually receive the reflected light from the wide-area light receiving reflection range and the near-light receiving reflection range. The near-light receiving ray and the wide-area light receiving ray are individually converted by photoelectric signals and the signal processing system outputs signals to control the opening and closing of the automatic access gate.

[0016] Preferably, the sensing lens includes a light emitting portion and a light receiving portion that are separated from each other and connected in the same direction to form the sensing lens. The light rays in the light field projection range of the light emitting portion are reflected to form the light rays in the receiving portion, and a light emission and reception correspondence is established with the light rays in the light field projection range of the light emitting portion. The sensing lens can receive the reflected light rays in the light receiving and reflection range and output a signal to control the opening and closing of the automatic access gate through photoelectric signal conversion and the signal processing system.

[0017] Preferably, the sensing lens includes a light emitting portion and a light near receiving portion, which are separated from and connected to each other in the same direction to form the sensing lens. The light rays in the light field projection range of the light emitting portion are reflected to form the near receiving light rays, and a light emission and reception correspondence is established with the light rays in the light field projection range of the light emitting portion. The sensing lens can receive the reflected light rays in the near receiving reflection range and output a signal to control the opening and closing of the automatic access gate through photoelectric signal conversion and the signal processing system.

[0018] Preferably, the device is located above the side opening operation of the automatic access door. The sensor lens comprises a light emitting portion and a light proximity receiving portion, both separated and connected in the same direction to form the sensor lens. The light proximity receiving portion is used to receive reflected light from the light field projection range of the safe operating range of the automatic access door's side. When the automatic access door is opening, if an object approaches the light field projection range of the automatic access door's side opening operation range, the light proximity receiving unit will receive the reflected light and then, through photoelectric signal conversion and the signal processing system, control the automatic access door to react in real time, stopping or slowing down for safe operation.

[0019] The beneficial effects of this invention are that the adjustable light field range and high-efficiency emission access sensor provided by this invention include a light field modulation circuit, which is electrically connected to the light emission module in the sensing lens. Therefore, the emission of light from the light emission unit can be individually controlled through a light field switch. Furthermore, the emission range of the access sensor is adjustable, allowing the access light field range to be adjusted according to the needs of the automatic access gate, facilitating flexible adjustment and use during installation. Moreover, because the light emission module is equipped with light emission combination circuit boards at various angles, the optical axes of individual light emission unit beams are projected at different angles onto the center of the emitting convex lens and are nearly optically coaxial with the optical axis of the emitting convex lens. Therefore, the emitted beams can be efficiently and individually projected onto the light field range of the automatic access gate.

[0020] To further understand the features and technical content of the present invention, please refer to the following detailed description and accompanying drawings. However, these descriptions and drawings are only for illustrating the present invention and are not intended to limit the scope of protection of the present invention in any way. Attached Figure Description

[0021] Figure 1 This is an exploded perspective view of the sensing lens and housing of the present invention.

[0022] Figure 2 This is a schematic diagram showing the relative positions of the light emitting and light receiving parts inside the sensing lens of the present invention.

[0023] Figure 3 This is a schematic diagram showing the relative positions of the light emitting and light receiving parts inside the high-efficiency sensing lens of the present invention.

[0024] Figure 4 This is an exploded view of the light emitting module and the visible light emitting module inside the high-efficiency sensing lens of the present invention.

[0025] Figure 5 This is a schematic diagram showing how the optical axis of the high-efficiency light emitting unit beam of the present invention is individually projected onto the center of the convex lens to generate an individual optical coaxial relationship.

[0026] Figure 6 This is a schematic diagram showing the light reflected from the high-efficiency light field range of the present invention and individually focused by the receiving convex lens group onto the light receiving unit.

[0027] Figure 7 This is a circuit diagram of the optical field modulation circuit (I) of the present invention controlling the optical emission unit.

[0028] Figure 8 This is a schematic diagram showing the relationship between the optical field ranges Type1 to Type12 generated by the optical field switching modulation optical emission unit in the optical field modulation circuit (I) of the present invention.

[0029] Figure 9 This is a circuit diagram of the optical field modulation circuit (II) of the present invention, which controls the optical emitting unit via a programmable microcontroller.

[0030] Figure 10 This is a schematic diagram of the light field of individual optical axes and individual radiated rays projected by the light emitting part of the present invention.

[0031] Figure 11 This is a schematic diagram showing the reflected optical axis of the optical field range of the present invention to the wide-angle receiving part and the near-angle receiving part.

[0032] Figure 12 This is a schematic diagram showing the reflected optical axis of the optical field range of the present invention to the optical receiving part.

[0033] Figure 13 This is a schematic diagram showing the near-receiving reflection range and visible light range of the light field within the leading edge of the automatic access gate of the present invention, as well as the near-receiving optical axis to the near-receiving part.

[0034] Figure 14 This is a schematic diagram showing the light near-receiving reflection range and visible light range within the side light field of the automatic access gate of the present invention, as well as the path from the side receiving optical axis to the light near-receiving part.

[0035] Figure 15 This is a schematic diagram of the light field projection range and light emission axis, as well as the light reception and reflection range and light reception axis of the automatic rolling door passage area according to the present invention. Detailed Implementation

[0036] Please refer to Figures 1 to 6 This invention provides a gate sensor with an adjustable light field range and high-efficiency emission, the gate sensor 10 being disposed above an automatic gate (e.g., Figures 10 to 13 As shown, the automatic access door can be an automatic door 11 or an automatic roller door 12, but is not limited to these. The access sensor 10 is used to sense the entry and exit of people and objects, thereby controlling the opening and closing of the automatic door 11 or the automatic roller door 12. The access sensor 10 includes a light field modulation circuit 710 (…). Figure 7 , Figure 9A sensing lens 08 is provided. The sensing lens 08 includes a light emitting portion 05, which comprises a plurality of light emitting units 111 and a emitting convex lens 510, and adjacent to it, includes at least one light receiving portion, which comprises a plurality of light receiving units 111 and a plurality of convex lenses forming a light receiving convex lens 510. The emitting convex lens 510 includes a emitting convex lens 501. The light emitting units 111 project a light beam. The plurality of light emitting units 111 are disposed on a photoelectric signal conversion carrier 03. Figure 7 , Figure 9 As shown, the light field modulation circuit 710 includes multiple light field switches 701 and multiple electronic switch components 702, with the light field switches 701 exposed through a light field switch aperture 903. The light receiving section includes a light receiving convex lens, which includes a near-receiving convex lens 410 and a wide-receiving convex lens 610. The wide-receiving convex lens 610 includes a wide-receiving convex lens group 601. The light receiving unit may include a wide-receiving unit 301 and a near-receiving unit 302. The wide-receiving unit 301 may be electrically disposed on the photoelectric signal conversion carrier 03.

[0037] These light emitting units 111 can be used to emit light beams. In this embodiment, these light emitting units 111 can be infrared LED emitters, which can be used to emit infrared light, but this is not limited. Multiple light emitting units 111 are provided, and the light emitting units 111 are arranged in an array, but this is not limited. These light emitting units 111 can be arranged in at least one column to form a proximity receiving sensor. These light emitting units 111 can also be arranged in two, three, or four columns, etc., to form a wide-area receiving sensor. When there is only one column of light emitting units 111, that column contains multiple light emitting units 111. When there are two or more columns of light emitting units 111, each column has at least one light emitting unit 111, and each column can also contain two, three, four, or more light emitting units 111. In this embodiment, the light emitting units 111 can be electrically disposed on the photoelectric signal conversion carrier 03, which can be a circuit board. The light emitting units 111 are electrically connected to the light field modulation circuit 710 via the photoelectric signal conversion carrier 03 through a circuit or connecting conductor 121, but this is not limited. The light field switch 701 individually controls the electronic switch assembly 702, allowing the electronic switch assembly 702 to selectively turn the light emitting units 111 on or off to project light emission axes J1 at different angles. These light emission axes J1 can be infrared, but this is not limited. The electronic switch assembly 702 within the light field modulation circuit 710 can select different modes of on / off, combining to form light fields with various depths and widths of passable ranges (e.g., light emitting units 111). Figure 8As shown in Type 1 to Type 12, the opening and closing of the optical field modulation circuit 710 can be controlled by existing electronic technology or mechanical switches. Since the switching method is existing technology, it will not be described in detail or limited.

[0038] The sensing lens 08 may include a near-light receiving section 04, a light emitting section 05, and a wide-area light receiving section 06. The near-light receiving section 04 may simultaneously include a near-light receiving convex lens 410, multiple near-light receiving units 302, multiple visible light emitting units 211, and a visible light emitting convex lens group 402; the light emitting section 05 includes an emitting convex lens 510 and multiple light emitting units 111; the wide-area light receiving section 06 includes a wide-area light receiving convex lens 610 and multiple wide-area light receiving units 301. The light receiving section may include the near-light receiving section 04 and the wide-area light receiving section 06. The light receiving units and light emitting units 111 may be disposed on the photoelectric signal conversion carrier 03, but are not limited thereto.

[0039] The light field projection range G (e.g.) within the passage range Figure 10 As shown, when an external object intervenes and reflects light onto the wide-angle receiving convex lens group 601, the light is focused by the light receiving unit 301 inside the sensing lens 08 based on optical principles. The reflected light is converted into an electronic signal and then output by the signal processing system to control the opening and closing of the automatic passage gate.

[0040] The sensing lens 08 includes a light emitting module 01. The light emitting module 01 includes a light emitting carrier 120 and a light emitting support 110. The light emitting carrier 120 includes a connecting conductor 121, a light emitting body 122, a mounting surface 123, and at least one positioning post 124. The mounting surface 123 can be configured at various angles and individually faces the center of the emitting convex lens 501. The light emitting support 110 includes multiple light emitting units 111, a light emitting combined circuit board 112, a V-groove 113, and a mounting surface 114 for the light emitting combined circuit board. The multiple light emitting units 111 are electrically disposed on the front side of the light emitting combined circuit board 112 at various angles, and the back side of the light emitting combined circuit board 112 is the mounting surface 114. The mounting surfaces 123 and 114, each facing the center of the emitting convex lens at different angles, are respectively joined together at the same angle to form the light emitting module 01. The light emitting axis J1 of each individual light emitting unit 111 is directed towards the center of the emitting convex lens 501, allowing the light beam to uniformly cover the emitting convex lens 501. Since the two are nearly optically coaxial, the emitted light beam can be efficiently and individually projected onto the light field projection range G of the automatic access gate (e.g., Figure 10 ).

[0041] The light emitting combined circuit boards 112 may be multiple independent circuit boards electrically connected to each other, or the light emitting combined circuit boards 112 may be an integral structure with multiple cut V-shaped grooves 113 on the back side corresponding to the same positions of the multiple independent circuit boards. The V-shaped grooves 113 cause the integral structure light emitting combined circuit boards 112 and the light emitting combined circuit boards 112 assembled from individual units to be broken at the same positions and electrically connected.

[0042] The near-light receiving part 04, the light emitting part 05, and the wide-light receiving part 06 emit and receive light in the same direction, and are separated and connected to form a sensing lens 08 integrating wide and near light. The light emitted from the projection range G is reflected to form a near-light receiving axis H1 (i.e., near-light receiving ray) and a wide-light receiving axis I1 (i.e., wide-light receiving ray). The light emitting part 05, the near-light receiving part 04, and the wide-light receiving part 06 establish a corresponding relationship between light emission and reception. The sensing lens 08 can individually receive the wide-light receiving axis I1 and the near-light receiving axis H1. The wide-light receiving axis I1 and the near-light receiving axis H1 are individually processed by a signal processing system before controlling the opening or closing of the automatic door 11 (e.g., Figure 11 (As shown).

[0043] The light emitting part 05 and the light receiving part 06 emit and receive light in the same direction, and are separated and connected to each other to form a sensing lens 08. The light emitting part 05 and the light receiving part 06 establish a corresponding relationship for light emission and reception. This sensing lens 08 can receive light along the wide receiving optical axis I1 (e.g., the wide receiving reflection range I). Figure 11 The signal is then processed by the signal processing system to control the opening or closing of the automatic door 11 and the automatic rolling door 12 (e.g., Figure 12 , Figure 15 (As shown).

[0044] The light emitting part 05 and the light near receiving part 04 emit and receive light in the same direction, and are separated and connected to each other to form a sensing lens 08. The light emitting part 05 and the light near receiving part 04 have a corresponding emission and reception relationship. The sensing lens 08 receives the light from the near receiving optical axis H1 within the near receiving reflection range H, and then processes this signal through a signal processing system to control the opening or closing of the automatic door 11 (e.g., ...). Figure 13 (As shown).

[0045] An adjustable light field range and a high-efficiency emission passage sensor device are located above the side opening operation of the automatic passage gate. The light emitting part 05 and the light proximity receiving part 04 emit and receive light in the same direction, and are separated from and connected to each other, forming a sensing lens 08. The light emitting part 05 and the light proximity receiving part 04 have a corresponding emission and reception relationship. The light proximity receiving part 04 is used to receive the side receiving optical axis Hs1 (e.g., within the safe operating range of the automatic passage gate's side) Figure 14 When the automatic access door is in operation, if an object approaches the side light receiving and reflection range Hs of the automatic access door, the side receiving optical axis Hs1 of the light near receiving part 04 is processed by the signal processing system and then the automatic access door is controlled to stop or decelerate in real time when it is in operation, so as to maintain the safe operation of the automatic access door when the side is open.

[0046] The sensing lens 08 may also include at least one visible light emitting convex lens group 402 and multiple visible light emitting units 211. The visible light emitting units 211 and the visible light emitting convex lens group 402 project the visible light emitting optical axis K1 based on optical principles (e.g., Figure 5 The visible light range K (e.g., the operating range of the leading edge of the automatic access gate) is displayed. Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 The visible light emitting unit 211 can be a visible light LED or a visible light laser, but is not limited thereto.

[0047] The emitting convex lens 501 can be disposed in front of the light emitting unit 111 to meet the needs of geometric optics. The emitting convex lens 501 can be a biconvex lens, a plano-convex lens or a Fresnel lens, etc., and the form of the emitting convex lens 501 is not limited.

[0048] The light beam emitted by the light emitting unit 111 is projected onto the passageway of the automatic access door at individual different angles via the emitting convex lens 501 and the light emitting optical axis J1. Figure 10 (As shown), these can be combined to form various different light field projection ranges G. Please refer to... Figure 7 A circuit diagram (I) of three optical emitting units 111 and an optical field modulation circuit 710 is disclosed. The optical field switch 701 within the optical field modulation circuit 710 has various switching combinations and can generate, for example, Figure 8 The diagram shows the light field variations of various projections from Type 1 to Type 12 within the light field range modulation schematic.

[0049] Figure 7 The exposed light emitting unit 111 is connected to the light field switch 701 via the electronic switch assembly 702, and can be individually turned on or off to determine the range of the projected light field. Please refer to... Figure 9The circuit diagram (II) of the three-column optical emitting unit 111 and the optical field modulation circuit 710 is disclosed. Figure 9 The disclosed method utilizes at least one programmable microcontroller 703 and at least one light field display 704. The programmable microcontroller 703 controls the individual on / off states of the light emitting units 111, thereby determining the light field projection range G of the projected light field. For example, a light field switch 701 controls the programmable microcontroller 703 and displays the light field on the light field display 704. Figure 8 The light field projection range of Type 1 to Type 12 shown in the light field range modulation diagram can be determined by the programmable microcontroller 703, which enables the electronic switch assembly 702 to synchronously drive the light emitting unit 111 to determine the range of light field that can pass.

[0050] like Figure 5 , Figure 10 As disclosed, the upper left LED projection light field LF-ul refers to the light field projected along the upper left optical axis ul; the middle left LED projection light field LF-m-1 refers to the light field projected along the middle left optical axis m-1; and the lower left LED projection light field LF-d-1 refers to the light field projected along the lower left optical axis d-1. The upper middle LED projection light field LF-uc refers to the light field projected along the upper middle optical axis uc; the center LED projection light field LF-mc refers to the light field projected along the center optical axis mc; and the lower middle LED projection light field LF-dc refers to the light field projected along the lower middle optical axis dc. The upper right LED projection light field LF-ur refers to the light field projected along the upper right optical axis ur; the middle right LED projection light field LF-mr refers to the light field projected along the middle right optical axis mr; and the lower right LED projection light field LF-dr refers to the light field projected along the lower right optical axis dr. Here, u represents up, m represents middle, d represents down, l represents left, c represents center, and r represents right.

[0051] like Figures 2 to 6 The disclosed photoelectric signal conversion carrier 03 can be a circuit board, and the wide-area receiving unit 301 and the near-area receiving unit 302 can be electrically disposed on the photoelectric signal conversion carrier 03. The wide-area receiving unit 301 and the near-area receiving unit 302 are not limited to being disposed at intervals on both sides of the light emitting unit 111, and their interval positions can be interchanged under the conditions required by the mechanism design. The above-provided drawings and descriptions are for reference only and are not intended to limit the present invention.

[0052] One or two light-receiving convex lenses can be provided. Wide-range receiving convex lens 610 includes a wide-range receiving convex lens group 601, and near-range receiving convex lens 410 includes a near-range receiving convex lens group 401. Each of these two light-receiving convex lenses (near-range receiving convex lens 410 and wide-range receiving convex lens 610) is composed of multiple convex lenses forming a receiving convex lens group (near-range receiving convex lens group 401 and wide-range receiving convex lens group 601), and is respectively focused onto the near-range receiving unit 302 and the wide-range receiving unit 301 based on geometric optical requirements. The light beams emitted by these light-emitting units 111 are projected onto the emitting convex lens 501 according to geometric optical requirements, and are combined at the entrance to form a passage light field based on individual light radiation at different angles. The light reflected within this light field can be focused onto the wide-range receiving unit 301 and the near-range receiving unit 302 by the wide-range receiving convex lens group 601 and the near-range receiving convex lens group 401, respectively. A visible light emitting convex lens group 402 may also be further provided on the near-receiving convex lens plate 410.

[0053] In this embodiment, as Figure 1 The disclosed access sensor 10 may further include a housing 09, a sensing lens 08, and a sensing signal processing carrier 07. The housing 09 includes a bottom shell 901, an upper shell 902, and a light field switch hole 903, and may also include an outer shell 905 and a filter lens 904. The sensing signal processing carrier 07 may be provided with a light field switch 701, which is exposed at the position corresponding to the light field switch hole 903 and forms a modular design to allow for modulation of the range of the access light field.

[0054] The present invention provides an adjustable light field range and a high-efficiency emission passage sensor. The passage sensor 10 is installed at the entrance of an automatic passage door. It can adjust the light field switch 701 through the light field switch hole 903, thereby adjusting the light field range projected by the light emission unit 111. If an object enters the light field range, the light field energy will change, and the automatic passage door can be opened through the control circuit.

[0055] like Figure 4As shown, the visible light emitting module 02 includes a visible light emitting carrier 210 and a visible light carrier base 220. The visible light emitting carrier 210 includes a plurality of visible light emitting units 211 and a plurality of visible light combination circuit boards 212. The visible light emitting units 211 are respectively disposed on the visible light combination circuit boards 212, and the visible light emitting units 211 are electrically disposed on the front side of the visible light combination circuit boards 212, and the visible light emitting units 211 can be electrically mounted on the visible light combination circuit boards 212 respectively. The visible light carrier 220 has multiple visible light connecting conductors 221 and a visible light base 222. The visible light base 222 has multiple visible light base mounting surfaces 223, which correspond to the back surface of the visible light combination circuit board 212. The visible light combination circuit board 212 is appropriately fixed to these visible light base mounting surfaces 223. The visible light emitting units 211 can be electrically disposed on the visible light combination circuit board 212 and on the visible light carrier 220, respectively. The optical axis of the beam emitted by the visible light emitting unit 211 is aligned with the center of the visible light emitting convex lens group 402. Therefore, the angle of the projected visible light can uniformly cover the visible light emitting convex lens group 402. Due to the corresponding relationship between the two and the visible light emission optical axis K1 generated based on optical principles (e.g., ...), the visible light emitting unit 211 emits a beam with an optical axis K1 (e.g., ...). Figure 5 It can efficiently project a visible light range of K (e.g., Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 (Approaching the front edge of the automatic access gate.)

[0056] These visible light combined circuit boards 212 can be multiple independent circuit boards electrically connected to each other, or these visible light combined circuit boards 212 can be a single integral structure. The back of the visible light combined circuit board 212 has multiple V-shaped grooves 113 cut at the same positions corresponding to the multiple independent circuit boards. The V-shaped grooves 113 cause the integral visible light combined circuit board 212 and the single independent circuit board 212 to be broken at the same positions and electrically connected.

[0057] Please refer to Figure 4In this embodiment, the light emitting units 111 are arranged in three columns: upper, middle, and lower. Each column has three light emitting units 111. The three light emitting units 111 in the upper column emit light along the upper right optical axis ur, the upper middle optical axis uc, and the upper left optical axis ul. The three light emitting units 111 in the middle column emit light along the middle right optical axis mor, the center optical axis mac, and the middle left optical axis ml. The three light emitting units 111 in the lower column emit light along the lower right optical axis dr, the lower middle optical axis dc, and the lower left optical axis dl. The upper right optical axis ur, the upper middle optical axis uc, the upper left optical axis ul, the middle right optical axis mor, the center optical axis mac, the middle left optical axis ml, the lower right optical axis dr, the lower middle optical axis dc, and the lower left optical axis dl form an optically coaxial relationship with the emitting convex lens 501. Therefore, the light beam emitted by these light emitting units 111 can uniformly cover the lens of the emitting convex lens 501. The light beams emitted by each light emitting unit 111 in the light emitting module 01 are projected at different angles onto the center of the emitting convex lens 501, and the combined light beams are projected into a range of traffic sensing light fields due to optical principles.

[0058] Please refer to Figure 11 The access sensor 10 is installed at the entrance of the automatic access door. The light field switch 701 selects the projection light field range, and the light emitting unit 111 projects a light field projection range G at a wide and near position in front of the automatic door. The wide light receiving and reflection range I and the near light receiving and reflection range H are used to receive reflected light from the entire area of ​​the light field projection range G. Please refer to... Figure 12 The access sensor 10 is installed at the entrance of the automatic access door. The light field switch 701 selects the projection light field range, and the light emitting unit 111 projects the light field projection range G in front of the automatic door 11. The light receiving and reflection range I is used to receive reflected light from the entire area of ​​the light field projection range G.

[0059] Please refer to Figure 13 The light emitting unit 111 and the visible light emitting unit 211 project onto the light emitting range J and the visible light range K at the leading edge of the automatic door 11. The near-receiving convex lens group 401 is used to receive the near-receiving optical axis H1 near the light emitting range J at the leading edge of the automatic door 11. If an object enters the near-receiving reflection range H, the light field energy will change, and the automatic door 11 can be opened via the control circuit.

[0060] Please refer to Figure 14The access sensor 10 is positioned at the front edge of the automatic door 11, where the light emitting unit 111 and the visible light emitting unit 211 project onto the side of the automatic door 11, at the near-emission range J and the visible light range K. The near-receiving convex lens group 401 receives the reflected light from the near-emission range J near the front edge of the automatic door 11 and the side-receiving optical axis Hs1. When the automatic door 11 is operating, if an intruder approaches the side opening range of the automatic door 11, the side-receiving optical axis Hs1 of the near-receiving part 04 controls the automatic door 11 to stop or decelerate in real time via the signal processing system to maintain safe operation.

[0061] Please refer to Figure 15 The access sensor 10 is located at the entrance of the automatic rolling door 12, and the light field switch 701 (not shown) Figure 15 Select the projection light field range. The light emitting unit 111 projects the light field projection range G in front of the automatic rolling door 12. The light receiving and reflection range I is used to receive the reflected light from the entire area of ​​the light field projection range G.

[0062] The visible light emitting unit 211 is projected onto the visible light emitting convex lens group 402, and then the visible light range K is projected to the position near the front edge of the door based on optical principles. The position of the visible light field can then correspond to the relevant positions of the near-emitting light range J and the near-receiving and reflecting light range H at the front edge of the door.

[0063] [Beneficial Effects of the Examples]

[0064] The beneficial effects of this invention are that the adjustable light field range and high-efficiency emission passage sensor provided by this invention includes multiple light emitting units, at least one emitting convex lens, at least one light receiving unit, and at least one receiving convex lens. Multiple light emitting units are arranged in an array, forming at least one column, or multiple columns such as two, three, or four columns. When there is only one column, the column contains multiple light emitting units. When there are two or more columns, each column has at least one light emitting unit. These light emitting units are electrically connected to an electronic switch assembly and a light field switch within a light field switch control unit, thereby controlling whether the light emitting units project light beams. Furthermore, the optical axes of the light beams emitted by each light emitting unit are approximately optically coaxial with the optical axis of the emitting convex lens, and the projected light beams uniformly cover the emitting convex lens. Therefore, the light beams projected by individual light emitting units at different angles can efficiently and uniformly radiate the light field within the sensing range. Furthermore, the emission range is adjustable, allowing for flexible adjustments and changes to accommodate the specific needs of the automatic access gate. This facilitates flexible adjustments and use during installation.

[0065] The content disclosed above is only a preferred and feasible embodiment of the present invention, and is not intended to limit the patent scope of the present invention. Therefore, all equivalent technical changes made based on the content of the present invention specification and drawings are included within the patent scope of the present invention.

Claims

1. A tunable optical field range and high performance emission enabled through- going sensor, characterized in that, The access sensor, used to control the opening and closing of automatic access doors, includes: At least one optical field modulation circuit, the optical field modulation circuit comprising at least one optical field switch and multiple electronic switching components; and A sensing lens includes a light emitting portion and at least one adjacent light receiving portion. The light emitting portion includes multiple light emitting units and a light emitting convex lens. The light receiving portion includes multiple light receiving units and a light receiving convex lens composed of multiple convex lenses. The light field switches in the light field modulation circuit enable multiple electronic switch components to individually modulate the opening or closing of multiple light emitting units in the light emitting part, and project light beams at different angles onto the emitting convex lens. The emitting convex lens radiates the light beams to the light field range required by the automatic passage door based on optical principles. When an external object intervenes in the light field within the passage range, the light will be reflected to the light receiving convex lens in the light receiving part. The light is focused onto the light receiving unit based on optical principles. The light receiving unit can convert the reflected light into electronic signals, and output signals to control the opening and closing of the automatic passage door through a signal processing system. The light emitting units are arranged in a row, and the row has at least one light emitting unit, or the light emitting units are arranged in two or more rows, each row having at least one light emitting unit, and projecting light beams at different angles onto the emitting convex lens. The emitting convex lens radiates the light beams to the light field range required by the automatic passage gate based on optical principles.

2. The variable light field range and high performance emitting through- going sensor of claim 1, wherein, The light field modulation circuit further includes at least one programmable microcontroller, which controls the light field switches to enable the multiple electronic switching components to individually modulate the on or off of the light emitting units within the light emitting units.

3. The variable light field range and high performance emitting through- going sensor of claim 1, wherein, The light emitting unit is an infrared emitting LED and the light receiving unit is an infrared receiving LED.

4. The variable light field range and high performance emitting through- going sensor of claim 1, wherein, The sensing lens includes a light emitting module, which includes a light emitting base and a light emitting carrier. The light emitting base includes a light emitting body with multiple mounting surfaces at different angles. The light emitting carrier includes multiple independent light emitting circuit boards, each of which faces the center of the emitting convex lens at a different angle and is electrically connected to form a combined light emitting circuit board. Multiple light emitting units are electrically disposed on the front side of the combined light emitting circuit board, and the back side of the combined light emitting circuit board is the mounting surface of the combined light emitting circuit board, which corresponds to the mounting surface of the base. The mounting surface of the combined light emitting circuit board and the mounting surface of the base are respectively coupled at the same angle. The optical axis of the light beam of each light emitting unit can be projected onto the center of the emitting convex lens in a near-optical coaxial relationship, and the light beam can uniformly cover the emitting convex lens.

5. The variable light field range and high performance emitting through- going sensor of claim 4, wherein, The light-emitting combined circuit board consists of multiple independent circuit boards that are electrically connected to each other, or the light-emitting combined circuit board is an integral structure. Multiple V-shaped grooves are cut on the back of the light-emitting combined circuit board at the same position corresponding to the multiple independent circuit boards. These V-shaped grooves enable the integral light-emitting circuit board and the light-emitting combined circuit board composed of independent individual circuit boards to bend and electrically connect at the same position.

6. The variable light field range and high performance emitting through- going sensor of claim 1, wherein, The sensing lens includes at least one visible light emitting convex lens group and at least one visible light emitting unit. The visible light emitting units and the visible light emitting convex lens group project visible light based on optical principles to display the position of the light field within the operating range of the front edge of the automatic access gate.

7. The variable light field range and high performance emitting through- going sensor of claim 6, wherein, These visible light emitting units are either visible light emitting LEDs or visible light lasers.

8. The variable light field range and high performance emitting through- going sensor of claim 6, wherein, The sensing lens includes a visible light emitting module, which comprises a visible light carrier and a visible light emitting platform. The visible light carrier includes a visible light base with at least one visible light base mounting surface. The visible light emitting platform includes multiple independent visible light circuit boards, each facing the center of the visible light emitting convex lens at a different angle and electrically connected to form a visible light combined circuit board. Multiple visible light emitting units are electrically disposed on the front side of the visible light combined circuit board. The back side of the visible light combined circuit board is the mounting surface of the light emitting combined circuit board and corresponds to the mounting surface of the visible light base. The mounting surface of the visible light base and the mounting surface of the light emitting combined circuit board are respectively coupled at the same angle. The optical axis of the beam of each visible light emitting unit is projected onto the center of the visible light emitting convex lens group, so that the visible light can be uniformly covered on the emitting convex lens.

9. The adjustable light field range and high-efficiency emission passage sensor as described in claim 8, characterized in that, These visible light combined circuit boards are multiple independent circuit boards that are electrically connected to each other, or the visible light combined circuit board is an integral structure. Multiple V-shaped grooves are cut on the back of the visible light combined circuit board at the same position corresponding to the independent circuit boards. These V-shaped grooves enable the integral visible light combined circuit board and the individual visible light combined circuit boards to bend and electrically connect at the same position.

10. The adjustable light field range and high-efficiency emission passage sensor as described in claim 1, characterized in that, The sensing lens includes a near-light receiving part, a light emitting part, and a wide-light receiving part. The near-light receiving part, the light emitting part, and the wide-light receiving part emit and receive light in the same direction, and are separated and connected to each other to form the sensing lens. The light in the light field projection range of the light emitting part is reflected to form a near-light receiving ray and a wide-light receiving ray. The light field projection range of the light emitting part will respectively establish a light emission and reception correspondence with the near-light receiving ray and the wide-light receiving ray. The sensing lens can individually receive the reflected light from the wide-light receiving reflection range and the near-light receiving reflection range. The near-light receiving ray and the wide-light receiving ray are individually converted by photoelectric signals and the signal processing system outputs signals to control the opening and closing of the automatic access gate.

11. The adjustable light field range and high-efficiency emission passage sensor as described in claim 10, characterized in that, The sensing lens includes a light emitting part and a light receiving part, which are separated and connected to each other in the same direction to form the sensing lens. The light rays in the light field projection range of the light emitting part are reflected to form the light rays in the receiving part, and a corresponding relationship is established between the light emission and reception of the light rays in the light field projection range of the light emitting part. The sensing lens can receive the reflected light rays in the light receiving and reflection range and output a signal to control the opening and closing of the automatic access gate through photoelectric signal conversion and the signal processing system.

12. The adjustable light field range and high-efficiency emission passage sensor as described in claim 10, characterized in that, The sensing lens includes a light emitting part and a light near receiving part, which are separated and connected to each other in the same direction to form the sensing lens. The light rays in the light field projection range of the light emitting part are reflected to form the near receiving light rays, and a light emission and reception correspondence is established with the light rays in the light field projection range of the light emitting part. The sensing lens can receive the reflected light rays in the near receiving reflection range and output a signal to control the opening and closing of the automatic access gate through photoelectric signal conversion and the signal processing system.

13. The adjustable light field range and high-efficiency emission passage sensor as described in claim 10, mounted above the side of the automatic passage gate during its opening and operation, is characterized in that... The sensing lens includes a light emitting part and a light proximity receiving part, which are separated from and connected to each other in the same direction to form the sensing lens. The light proximity receiving part is used to receive the reflected light from the light field projection range of the safe operating range on the side of the automatic passage door. When the automatic passage door is opening and operating, if an object approaches the light field projection range of the automatic passage door's side opening and operating range, the light proximity receiving unit will receive the reflected light and then control the automatic passage door to stop or slow down its safe operation in real time through photoelectric signal conversion and the signal processing system.

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