Integrated Terminal and Vehicle with Reflective Sensor

Abstract

The integrated terminal and vehicle with a reflective sensor according to the present invention include an integrated terminal box, a transmission line, and a PM sensor. The integrated terminal box includes a housing, an OBD detection device, and a PM detection device; the PM sensor includes a main body, a detection gas chamber is provided on the main body and at least two sets of channel groups are formed in its extending direction, at least one optical path channel is formed in each set of channel groups, the cavity formed by the detection gas chamber is at least on the optical path formed by one set of channel groups, a guiding device is also provided on the main body, and the light of the emitting device is incident from one of the two sets of channel groups and then guided by the guiding device to enter the other set of channel groups. The solution of the present invention integrates the reflective sensor system and the OBD system, greatly simplifies the structure of the product, and has higher detection quality and efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of environmental protection equipment, especially vehicle exhaust monitoring and treatment technology, and particularly relates to an integrated terminal with a reflective sensor and a vehicle using the integrated terminal, and the vehicle includes vehicles and the like. Background Art

[0002] Exhaust gas emitted by motor vehicles or other equipment during operation. In modern civilization, cars have become an indispensable means of transportation for humans. However, while the automotive industry is developing rapidly and the production and ownership of cars are increasing continuously, cars have also brought air pollution, that is, vehicle exhaust pollution. In large and medium-sized cities in China, vehicle exhaust emissions have become the main source of air pollution. There is data showing that the total number of cars in Shanghai is only 1 / 12 of that in Tokyo, Japan, but the total amounts of CO, HC, and NO mainly emitted by cars in the air are basically the same. With the rapid economic development and increasing social needs in China, the number of in-use cars will increase significantly. Thus, it can be seen the urgency of reducing vehicle exhaust emissions. In order to promote environmental protection and environmental governance, the immediate monitoring of vehicle exhaust has become a common measure. In the prior art, OBD devices and PM sensor devices are independent, and traditional opposed-beam devices are large in size, require a pair of holes to be drilled in the exhaust pipe, may affect the exhaust of the exhaust pipe, and have complex installation wiring. x The total amounts are basically the same. With the rapid economic development and increasing social needs in China, the number of in-use cars will increase significantly. Thus, it can be seen the urgency of reducing vehicle exhaust emissions. In order to promote environmental protection and environmental governance, the immediate monitoring of vehicle exhaust has become a common measure. In the prior art, OBD devices and PM sensor devices are independent, and traditional opposed-beam devices are large in size, require a pair of holes to be drilled in the exhaust pipe, may affect the exhaust of the exhaust pipe, and have complex installation wiring. Summary of the Invention

[0003] The integrated terminal and vehicle with a reflective sensor of the present invention integrate the existing OBD and PM devices, thus simplifying the structure of the system, effectively meeting the convenience of the product terminal in installation and application, thereby improving the operation efficiency, simplifying the installation operation, and being beneficial to improving the signal stability and service life of the product.

[0004] The integrated terminal with a reflective sensor of the present invention includes an integrated terminal box, a transmission line, and a PM sensor. The integrated terminal box includes a housing, an OBD detection device, and a PM detection device. The OBD detection device and the PM detection device are both arranged in the housing. The PM sensor feeds back information to the PM detection device through the transmission line, and the PM detection device is communicatively connected to the OBD detection device;

[0005] The PM sensor includes a main body, on which a detection chamber is provided and at least two sets of channel groups are formed in its extending direction. Each set of channel groups has at least one optical path channel, and the cavity formed by the detection chamber is at least on the optical path formed by one set of channel groups. A guiding device is also provided on the main body. The light of the transmitting device is incident from one of the two sets of channel groups and then guided by the guiding device into the other set of channel groups and received by a receiving device (which can be a photodetector, etc.). Preferably, at this time, the main body can be provided with a transmitting installation position and a receiving installation position at the same end. The main body forms two optical path channels, and the transmitting device and the receiving device installed on the transmitting installation position and the receiving installation position are respectively located at both ends of the detection optical path formed by the two optical path channels. The main body can also be provided with a transmitting optical fiber installation position and a receiving optical fiber installation position at the same end. The main body forms two optical path channels, and optical fibers are distributed and connected to the transmitting optical fiber installation position and the receiving optical fiber installation position. The two parts of the optical fibers are respectively connected to the transmitting device and the receiving device. Through this connection of the optical fibers, a complete detection optical path is formed on the main body.

[0006] An improvement of the integrated terminal with a reflective sensor according to the present invention. Two optical path channels are formed on the main body in its extending direction. The cavity formed by the detection chamber is at least on the optical path formed by one of the two optical path channels. A guiding device is also provided on the main body. The light of the transmitting device is incident from one of the two optical path channels and then guided by the guiding device into the other optical path channel.

[0007] An improvement of the integrated terminal with a reflective sensor according to the present invention. The two optical path channels are arranged in parallel.

[0008] An improvement of the integrated terminal with a reflective sensor according to the present invention. The guiding device is a guiding optical fiber, and both ends of the guiding optical fiber are respectively connected to the optical path channels in the two sets of channel groups. The light of the transmitting device is incident from the optical path channel in one of the two sets of channel groups and then guided by the guiding optical fiber into the optical path channel in the other set of channel groups.

[0009] An improvement of the integrated terminal with a reflective sensor according to the present invention. The guiding device is a corner reflector. The light of the transmitting device is incident from the optical path channel in one of the two sets of channel groups and then reflected by the corner reflector and enters the optical path channel in the other set of channel groups.

[0010] An improvement of the integrated terminal with a reflective sensor according to the present invention. The PM detection device of the integrated terminal box includes a PM detection circuit provided with a PM information processing chip. The PM sensor is communicatively connected to the PM detection circuit and at least feeds back information to the PM information processing chip.

[0011] An improvement of the integrated terminal with a reflective sensor according to the present invention. The OBD detection device of the integrated terminal box includes an OBD detection circuit, the OBD detection circuit includes an OBD processing chip, the OBD detection circuit is communicatively connected to the PM detection circuit, and the OBD processing chip receives at least the information feedback from the PM information processing chip.

[0012] An improvement of the integrated terminal with a reflective sensor according to the present invention. A signal transfer device is further provided on the housing of the integrated terminal box, and the signal transfer device is communicatively connected to the OBD detection device.

[0013] An improvement of the integrated terminal with a reflective sensor according to the present invention. The transmission line includes an optical cable or an electric cable.

[0014] A vehicle, including an integrated terminal with a reflective sensor. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the external structure of an embodiment of the present application;

[0017] Figure 2 It is a schematic diagram of the structure of the PM sensor of an embodiment of the present application. Detailed Embodiments

[0018] The present invention will be described in detail below with reference to the embodiments shown in the drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these embodiments is included in the protection scope of the present invention.

[0019] It includes an integrated terminal box, a transmission line, and a PM sensor. The integrated terminal box includes a housing, an OBD detection device, and a PM detection device. The OBD detection device and the PM detection device are both arranged in the housing. The PM sensor feeds back information to the PM detection device through the transmission line, and the PM detection device is communicatively connected to the OBD detection device;

[0020] The PM sensor includes a main body, on which a detection chamber is provided and at least two sets of channel groups are formed in its extending direction. Each set of channel groups has at least one optical path channel. The cavity formed by the detection chamber is at least on the optical path formed by one set of channel groups. A guiding device is also provided on the main body. The light from the emitting device enters one of the two sets of channel groups first and then is guided by the guiding device into the other set of channel groups. Preferably, at this time, the main body can be provided with an emitting installation position and a receiving installation position at the same end. The main body forms two optical path channels. The emitting device and the receiving device installed on the emitting installation position and the receiving installation position are respectively located at both ends of the detection optical path formed by the two optical path channels. The main body can also be provided with an emitting optical fiber installation position and a receiving optical fiber installation position at the same end. The main body forms two optical path channels. Optical fibers are distributively connected to the emitting optical fiber installation position and the receiving optical fiber installation position. The two parts of optical fibers are respectively connected to the emitting device and the receiving device. Through this connection of optical fibers, a complete detection optical path is formed on the main body.

[0021] Two optical path channels are formed on the main body in its extending direction. The cavity formed by the detection chamber is at least on the optical path formed by one of the two optical path channels. A guiding device is also provided on the main body. The light from the emitting device enters one of the two optical path channels first and then is guided by the guiding device into the other optical path channel.

[0022] The two optical path channels are arranged in parallel.

[0023] The guiding device is a guiding optical fiber. The two ends of the guiding optical fiber are respectively connected to the optical path channels in the two sets of channel groups. The light from the emitting device enters the optical path channel in one of the two sets of channel groups first and then is guided by the guiding optical fiber into the optical path channel in the other set of channel groups.

[0024] The guiding device is a corner reflector. The light from the emitting device enters the optical path channel in one of the two sets of channel groups first and then is reflected by the corner reflector and enters the optical path channel in the other set of channel groups.

[0025] The integrated terminal with a reflective sensor of the present invention includes an integrated terminal box, a transmission line, and a PM sensor. The integrated terminal box includes a housing, an OBD detection device, and a PM detection device. The OBD detection device and the PM detection device are both arranged in the housing. The PM sensor feeds back information to the PM detection device through the transmission line. The PM detection device is communicatively connected to the OBD detection device. That is, the OBD and PM devices are integrated into the same device box, thus forming a structural form of a data box and an external PM sensor, which has a simpler structural form and is convenient for installation and application in vehicles and other carriers.

[0026] The PM sensor includes a main body, on which a detection chamber is provided (the detection chamber can penetrate the main body in a direction perpendicular to the extension direction of the main body to form a cavity for the airflow such as exhaust gas to pass through. Thus, when the main body of the sensor is installed in the exhaust pipe, the opening of the detection chamber on the main body faces the exhaust direction, so that the exhaust gas can smoothly pass through the cavity of the detection chamber; of course, it can also be inclined and intersecting with the extension direction of the main body, as long as it can ensure the smooth passage of the exhaust gas). And at least two sets of channel groups are formed in its extension direction. Each set of channel groups forms at least one optical path channel. The cavity formed by the detection chamber is at least on the optical path formed by one set of channel groups. A guiding device is also provided on the main body. The light of the emitting device enters one of the two sets of channel groups and then is guided by the guiding device into the other set of channel groups. At this time, two situations can be listed to illustrate the feasibility of the solution in the specification. The main body can be provided with an emission installation position and a reception installation position at the same end. The main body forms two optical path channels. The emitting device and the receiving device installed at the emission installation position and the reception installation position are respectively located at both ends of the detection optical path formed by the two optical path channels. The emitting device and the receiving device are powered by the PM detection device of the integrated terminal box, such as being connected to the PM detection circuit to support their normal operation; the main body can also be provided with an emission optical fiber installation position and a reception optical fiber installation position at the same end. The main body forms two optical path channels. Optical fibers are distributed and connected to the emission optical fiber installation position and the reception optical fiber installation position. The two parts of the optical fibers are respectively connected to the emitting device and the receiving device. Through this connection of the optical fibers, a complete detection optical path is formed on the main body. At this time, the emitting device and the receiving device can be integrated in the integrated terminal box, such as being arranged on the PCB board of the PM detection device).

[0027] For example, when two sets of channels are provided, at least one of the sets of channel groups can be used to connect to the emitting device to form an incident optical path channel (in this channel, the cavity of the detection chamber can be passed through for the first time), and at least another set of channel groups can be used to connect to the receiving device to form a reflection optical path channel or an outgoing optical path channel (in this channel, the cavity of the detection chamber can also be passed through for the second time. Of course, this channel can also avoid the cavity of the detection chamber and become a simple optical path channel for conducting light). Through the cooperation of these two types of channel groups and the guiding device, a complete detection optical path is formed in the main body).

[0028] To connect the two sets of channels, a guiding device is also provided on the main body. The light of the emitting device enters one of the two sets of channel groups and then is guided by the guiding device into the other set of channel groups. The light can be selected to pass through the detection chamber once in each set of channel groups on the optical path. At least one optical path channel in at least one of all the channel groups passes through the detection chamber to form an effective detection optical path).

[0029] At this time, the guiding device is a spherical reflector with an inward concave spherical reflecting surface, a corner reflector or an optical fiber. In order to make the detection light passing through the detection chamber parallel, the corner reflector is a reflecting device with reflecting surfaces having an included angle of 90 degrees between each other; it can also be that when using a spherical reflector, the included angle between the incident light and the normal line of the reflection point is 45 degrees.

[0030] The transmission line includes an optical cable or a cable, which is mainly used for information transmission and exchange between the PM sensor and the terminal box. When using an optical cable, no laser and optical signal receiver are provided on the PM sensor, but are arranged in the terminal box; when using a cable, the laser and optical signal receiver are directly arranged on the PM sensor main body, and the optical signal is transmitted to the terminal box through the cable after being converted or processed.

[0031] In order to meet the PM information collection and processing, as well as the OBD information collection and processing. The PM detection device of the integrated terminal box may include a PM detection circuit provided with a PM information processing chip (this chip is a chip used to convert and process the information collected by the PM sensor, etc.), the PM sensor is communicatively connected to the PM detection circuit, and at least implements information feedback to the PM information processing chip. The OBD detection device of the integrated terminal box may include an OBD detection circuit, and the OBD detection circuit includes an OBD processing chip (this chip is a chip used to convert and process the OBD diagnostic information, etc.), the OBD detection circuit is communicatively connected to the PM detection circuit, and the OBD processing chip at least receives the information feedback from the PM information processing chip. The OBD chip and the PM chip here can be integrated on the same physical chip or can be independent of each other.

[0032] A signal transfer device is also provided on the housing of the integrated terminal box, and the signal transfer device is communicatively connected to the OBD detection device. The signal transfer device here can be a data adapter, etc., and standard data interfaces can be adopted. Through these data interfaces, data can be transferred and transmitted outside the terminal, or the vehicle can supply power to the terminal, etc.

[0033] Such as Figure 1As shown, the integrated terminal of this scheme includes an integrated terminal box 02, an optical cable 023 and a PM sensor 01. That is, the laser and the receiver here are not set on the rod body on the PM sensor 01, but the laser and the receiver are set on the PM detection circuit in the integrated terminal box 02, so as to meet the detection laser emitted by the laser and transmitted into the rod body through the optical cable 023, and after completing the detection in the optical path channel, it returns to the receiver through the optical cable 023. The optical cable 023 is connected to the PM sensor 01 through the optical cable connector 04. In use, the PM sensor 01 is installed in the exhaust pipe of a vehicle such as a vehicle, and the opening direction of the detection chamber 014 is along the exhaust gas flow direction in the exhaust pipe, so as to meet the exhaust gas flowing smoothly in the detection chamber 014. The exhaust gas information is fed back to the PM detection circuit PM information processing chip for data processing, and the processing results are fed back to the OBD processing chip of the OBD detection circuit for comprehensive arrangement, and then can be fed back to the on-board computer through the adapter plug 021 plugged into the connection socket in the car, thereby completing the real-time monitoring information feedback to the on-board computer.

[0034] like Figure 2As shown, two optical path channels 011 and 012 are formed in the rod body of the PM sensor 01. Both optical path channels pass through the detection gas chamber 011 to complete the acquisition of exhaust gas information. At one end of the rod body of the PM sensor 01, a connection seat 03 is connected (the connection seat is a heat-insulating structure, such as made of ceramic material, etc., to avoid transferring high temperature to the laser seat during use), and a laser seat 04 connected to the connection seat 03. Both the connection seat 03 and the laser seat 04 are formed with optical path channel structures that cooperate with the two optical path channels 011 and 012 to meet the needs of the laser 041 and the receiver 042 installed on the laser seat 04 to emit laser and receive optical signals. At the other end of the rod body of the PM sensor 01, a guiding seat 06 is connected. The guiding seat 06 is also provided with a channel structure that cooperates with the two optical path channels 011 and 012. The guiding optical fiber 061 is arranged in this channel structure. The two ends of the guiding optical fiber 061 are respectively connected to the two optical path channels 011 and 012 in a matching manner to form a connected optical path in the two optical path channels 011, 012, and the guiding optical fiber 061. An installation space for arranging the guiding optical fiber 061 is formed on the guiding seat 06, and the guiding optical fiber 061 is limited in a temperature state by the locking bolt 063, so as to facilitate maintenance and repair during operation and effectively avoid loosening of the guiding optical fiber 061 during long-term operation. Of course, in order to cooperate with the guiding optical fiber 061, a groove is also formed at the contact part between the locking bolt 063 and the guiding optical fiber 061, so as to embed the guiding optical fiber 061 in this groove. At this time, the cross-section of the groove in the direction parallel to the paper surface can be triangular, so that the two surfaces where the two sides of the triangle are located abut against the guiding optical fiber 061. These two sides are the two right sides of an isosceles right triangle, and the included angles with the horizontal direction shown in the figure are both 45 degrees, so that the guiding optical fiber 061 obtains a temperature force, reduces the unbalanced force at the joint with the optical path channels 011 and 012, and is beneficial to applying an appropriate force in the direction of the optical path channels 011 and 012 through this abutment, which not only avoids affecting light reception due to direction change but also avoids loosening.

[0035] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention.

[0036] In addition, it should be understood that although this specification is described by way of examples, not every example only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each example can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. An integrated terminal with a reflective sensor, characterized in that, It includes an integrated terminal box, a transmission line, and a PM sensor. The integrated terminal box includes a housing, an OBD detection device, and a PM detection device. The OBD detection device and the PM detection device are both arranged in the housing. The PM sensor feeds back information to the PM detection device through the transmission line. The PM detection device is communicatively connected to the OBD detection device. The PM sensor includes a main body, a transmitting device, and a receiving device. A detection gas chamber is arranged on the main body, and at least two sets of channel groups are formed in its extending direction. Each set of channel groups has at least one optical path channel. The cavity formed by the detection gas chamber is at least on the optical path formed by one set of channel groups. A guiding device is also arranged on the main body. The light of the transmitting device enters one of the two sets of channel groups and then is guided by the guiding device into the other set of channel groups and received by the receiving device. Two optical path channels are formed on the main body in its extending direction. The cavity formed by the detection gas chamber is at least on the optical path formed by one of the two optical path channels. The light of the transmitting device enters one of the two optical path channels and then is guided by the guiding device into the other optical path channel and received by the receiving device. The two optical path channels are arranged in parallel. The guiding device is a guiding optical fiber. The two ends of the guiding optical fiber are respectively connected to the optical path channels in the two sets of channel groups. The light of the transmitting device enters the optical path channel of one of the two sets of channel groups and then is guided by the guiding optical fiber into the optical path channel of the other set of channel groups and received by the receiving device. The guiding device includes a guiding seat connected to the other end of the main body. The guiding seat is also provided with a channel structure matching the two optical path channels. The guiding optical fiber is arranged in the channel structure. The two ends of the guiding optical fiber are respectively connected to the two optical path channels in a matching manner. An installation space for arranging the guiding optical fiber is formed on the guiding seat, and the guiding optical fiber is limited by a locking bolt. A groove is also formed at the contact part between the locking bolt and the guiding optical fiber, so that the guiding optical fiber is embedded in the groove.

2. The integrated terminal with a reflective sensor according to claim 1, characterized in that, The PM detection device of the integrated terminal box includes a PM detection circuit provided with a PM information processing chip. The PM sensor is communicatively connected to the PM detection circuit and feeds back information to at least the PM information processing chip.

3. The integrated terminal with a reflective sensor according to claim 1, characterized in that, The OBD detection device of the integrated terminal box includes an OBD detection circuit. The OBD detection circuit includes an OBD processing chip. The OBD detection circuit is communicatively connected to the PM detection circuit. The OBD processing chip receives at least the information feedback from the PM information processing chip.

4. The integrated terminal with a reflective sensor according to claim 1, characterized in that, A signal transfer device is also arranged on the housing of the integrated terminal box. The signal transfer device is communicatively connected to the OBD detection device.

5. The integrated terminal with a reflective sensor according to claim 1, characterized in that, The transmission line includes an optical cable or an electric cable.

6. A vehicle, including the integrated terminal with a reflective sensor according to any one of claims 1-5.

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