An image acquisition device

Abstract

The utility model provides a kind of image acquisition equipment, belong to concrete transportation monitoring technical field.The equipment includes shell, transmission assembly, driving part and acquisition component.Shell includes the first installation surface and the second installation surface oppositely arranged along first direction.Transmission assembly includes first transmission part and second transmission part, and first transmission part is slidably connected to the first installation surface, and second transmission part is slidably connected to the second installation surface.Driving part is respectively abutted with first, second transmission part along the opposite sides of first direction, to make when driving part rotates, first, second transmission part can move in opposite direction along second direction.Acquisition component is connected with second transmission part.When acquisition component is in standby state, first transmission part can be covered and set in the opening of first installation surface, when acquisition component is in working state, acquisition component can pass through opening and gather image.The image acquisition equipment of the utility model can monitor the state of ready-mixed concrete in real time during transportation.

Description

Technical Field

[0001] This utility model relates to the field of concrete transportation monitoring technology, and in particular to an image acquisition device. Background Technology

[0002] Ready-mixed concrete, as a core material in modern construction, has a significant impact on construction quality due to its rheological properties. The slump, spread, and other rheological parameters of freshly mixed concrete directly determine its performance during transportation, pumping, and pouring. Currently, the industry commonly uses embedded monitoring systems in mixing plants, deploying pressure sensor arrays and industrial cameras on the mixing unit to collect real-time data on concrete uniformity. While such systems have achieved closed-loop quality control at the production end, monitoring blind spots still exist in the transportation phase. Traditional transportation monitoring relies on drivers' periodic visual inspections and on-site slump tests, which have significant limitations: insufficient frequency of manual observation and a lack of quantitative standards; slump tests upon arrival at the site have a significant lag, by which time the concrete has already entered the initial setting stage, and the performance adjustment window has essentially disappeared. More seriously, workers may illegally add water to improve pumpability, directly leading to a decrease in concrete compressive strength and seriously threatening the safety of building structures.

[0003] In related technologies, vehicle-mounted monitoring equipment mainly focuses on tank rotation parameters and GPS positioning, lacking direct acquisition and judgment of concrete conditions. Although some studies have attempted to install contact sensors at the tanker unloading port, the fixed installation location makes it difficult to obtain effective condition acquisition and judgment results. Utility Model Content

[0004] This invention provides an image acquisition device, the purpose of which is to monitor the status of ready-mixed concrete in real time during the transportation of ready-mixed concrete.

[0005] To achieve the above objectives, this utility model provides an image acquisition device, comprising:

[0006] The housing includes a first mounting surface and a second mounting surface arranged opposite to each other along a first direction, the first mounting surface having an opening;

[0007] A transmission assembly is disposed within the housing. The transmission assembly includes a first transmission component and a second transmission component. The first transmission component is slidably connected to the first mounting surface, and the second transmission component is slidably connected to the second mounting surface.

[0008] A driving member is disposed within the housing. The driving member abuts against the first transmission member and the second transmission member on opposite sides along the first direction, so that when the driving member rotates, the first transmission member and the second transmission member can move in opposite directions along the second direction, which is arranged to intersect with the first direction.

[0009] A data acquisition component is disposed inside the housing. The data acquisition component is connected to the second transmission component. The data acquisition component has a standby state and a working state.

[0010] When the acquisition component is in the standby state, the first transmission member can cover the opening; when the acquisition component is in the working state, the acquisition component can acquire images through the opening.

[0011] In one embodiment, when the acquisition component is in the standby state, the projection of the acquisition component on the first mounting surface does not coincide with the opening; when the acquisition component is in the working state, the projection of the first transmission member on the first mounting surface is located within the first mounting surface.

[0012] In one embodiment, the dimension of the first transmission member in the third direction is greater than or equal to the dimension of the acquisition component in the third direction, and the third direction, the second direction, and the first direction are arranged in pairs.

[0013] In one embodiment, the first transmission member has a first transmission tooth on the side near the second transmission member, and the second transmission member has a second transmission tooth on the side near the first transmission member. The driving member is a driving gear, which meshes with the first transmission tooth and the second transmission tooth respectively, so that the driving tooth can drive the first transmission member and the second transmission member to move in opposite directions along a second direction. The image acquisition device further includes a driving motor, the output shaft of which is connected to the driving gear to drive the driving gear to rotate.

[0014] In one embodiment, the image acquisition device further includes a first guide rail and a second guide rail. The first guide rail is disposed between the first transmission member and the first mounting surface so that the first transmission member can move relative to the first mounting surface in the second direction. The second guide rail is disposed between the second transmission member and the second mounting surface so that the second transmission member can move relative to the second mounting surface in the second direction.

[0015] The above-mentioned solution of this utility model has the following beneficial effects:

[0016] In this embodiment, the driving member abuts against the first and second transmission members on opposite sides along the first direction, such that when the driving member rotates, the first and second transmission members can move in opposite directions along the second direction. Based on this, when the acquisition component transitions from a working state to a standby state, the first transmission member can move towards the opening along the second direction to close the opening, and the second transmission member can drive the acquisition component away from the opening along the second direction. This allows the acquisition component to be in standby mode not only when the opening is closed but also when it is away from the opening, thus providing dual protection and reducing the possibility of contamination by the pre-mixed concrete in the standby state, which could affect its acquisition performance. This, in turn, allows the acquisition component to better monitor the state of the pre-mixed concrete inside the tank during the working state. When the acquisition component transitions from a standby state to a working state, the first transmission member can move away from the opening along the second direction to connect the opening with the space inside the tank containing the pre-mixed concrete, and the second transmission member can drive the acquisition component towards the opening along the second direction, allowing the acquisition component to acquire images of the pre-mixed concrete inside the tank through the opening for real-time monitoring of its state.

[0017] Other beneficial effects of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an image acquisition device in one embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram showing the relative positional relationship between the first transmission component and the second transmission component in one embodiment of the present invention. Figure 2 (a) shows the positional relationship between the first and second transmission components when the acquisition component is in standby mode. Figure 2 (b) shows the positional relationship between the first and second transmission components when the acquisition component is in operation;

[0020] Figure 3 This is a schematic cross-sectional view of a concrete mixer truck along the driving direction in one embodiment of the present invention.

[0021] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0022] [Explanation of Labels in the Attached Image]

[0023] 100. Image acquisition device; 1. Housing; 11. First mounting surface; 111. Opening; 12. Second mounting surface; 21. First transmission component; 211. First transmission gear; 22. Second transmission component; 221. Second transmission gear; 3. Drive component; 4. Acquisition assembly; 51. First guide rail; 52. Second guide rail; 6. Control assembly; 7. Tank truck; 71. Tank body; 72. Feed hopper; 73. Feed pipe. Detailed Implementation

[0024] To make the technical problems, solutions, and advantages of this utility model clearer, a detailed description will be provided below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a locking connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] This application provides an image acquisition device 100, which can be used to monitor the rheological properties of ready-mixed concrete during the transportation of ready-mixed concrete in a concrete mixer truck 7, and can also be used to monitor the properties of other materials during the transportation of other materials in other means of transport, such as vegetables, grains, petroleum, etc.

[0028] Specifically, please refer to Figure 1The image acquisition device 100 includes a housing 1, a transmission assembly, a drive component 3, and an acquisition assembly 4. The material of the housing 1 is not limited; for example, it can be a metal with a certain strength and hardness. The housing 1 includes a first mounting surface 11 and a second mounting surface 12 arranged opposite to each other along a first direction. For example, Figure 1 The direction indicated by R1 is the first direction. For example, the first mounting surface 11 and the second mounting surface 12 are both inner surfaces of the outer casing 1 that are arranged opposite each other along the first direction. The first mounting surface 11 has an opening 111. The outer casing 1 can be fixed by the second mounting surface 12. For example, the outer casing 1 can be fixed to the feed hopper 72 of the tank body 71 of the concrete mixer truck 7 by fixing angle brackets on the second mounting surface 12.

[0029] The transmission assembly is housed within the outer casing 1. The transmission assembly includes a first transmission member 21 and a second transmission member 22. The materials of the first transmission member 21 and the second transmission member 22 are not limited; for example, they can be metals with a certain strength and hardness. The first transmission member 21 is slidably connected to the first mounting surface 11, meaning that the first transmission member 21 can move relative to the first mounting surface 11. The second transmission member 22 is slidably connected to the second mounting surface 12, meaning that the second transmission member 22 can move relative to the second mounting surface 12.

[0030] The driving member 3 is disposed within the housing 1. The driving member 3 abuts against the first transmission member 21 and the second transmission member 22 on opposite sides along the first direction, so that when the driving member 3 rotates, the first transmission member 21 and the second transmission member 22 can move in opposite directions along the second direction. The second direction intersects with the first direction. For example, Figure 1 The direction shown by R2 is the second direction; the first direction can be arranged perpendicular to the second direction. For example, please refer to... Figure 1 The drive unit 3 can be perpendicular to Figure 1 The direction of the paper is the axis of rotation. The driving member 3 drives the first transmission member 21 and the second transmission member 22 to move by the combined force between them. For example, when the driving member 3 rotates clockwise, the first transmission member 21 on the left can move upward in the second direction, and the second transmission member 22 on the right can move downward in the second direction. When the driving member 3 rotates counterclockwise, the first transmission member 21 on the left can move downward in the second direction, and the second transmission member 22 on the right can move upward in the second direction.

[0031] The acquisition component 4 is housed within the outer casing 1. The acquisition component 4 can be a webcam. The acquisition component 4 is connected to the second transmission member 22. For example, the acquisition component 4 is positioned at one end of the second transmission member 22 along a second direction, allowing the acquisition component 4 to remain relatively stationary with the second transmission member 22. This allows the second transmission member 22 to move the acquisition component 4 along the second direction under the drive of the driving member 3. The acquisition component 4 has a standby state and an operating state. When the acquisition component 4 is in the standby state, the first transmission member 21 can cover the opening 111. When the acquisition component 4 is in the operating state, it can acquire images through the opening 111. For example, please refer to... Figure 2 , Figure 2 (a) shows the relative positions of the first transmission member 21 and the second transmission member 22 when the acquisition component 4 is in standby mode. Figure 2 (b) illustrates the relative positions of the first transmission member 21 and the second transmission member 22 when the acquisition component 4 is in operation. When the acquisition component 4 needs to enter standby mode, the drive member 3 can rotate counterclockwise to move the first transmission member 21 on the left side downward in the second direction, so that the first transmission member 21 can cover or even close the opening 111. During this process, the second transmission member 22 on the right side is also moved upward in the second direction, so that the acquisition component 4 can move upward and eventually be located outside the range of the opening 111 in the second direction, so that the acquisition component 4 can be stored deep inside the housing 1. When the acquisition component 4 needs to enter operation mode, the drive member 3 can rotate clockwise to move the first transmission member 21 on the left side upward in the second direction, so that the first transmission member 21 can gradually move away from the opening 111 in the second direction so that the opening 111 can communicate with the outside. During this process, the second transmission member 22 on the right side is also moved downward in the second direction, so that the acquisition component 4 can move downward to the range of the opening 111 in the second direction, so that the acquisition component 4 can acquire images of the outside world through the opening 111.

[0032] For example, the image acquisition device 100 of this application can be disposed outside the feed hopper 72 of the concrete mixer truck 7. Specifically, please refer to... Figure 3The concrete mixer truck 7 includes a tank body 71 and a feeding device. The tank body 71 is configured to hold ready-mixed concrete via the feeding device. The tank body 71 is rotatable to maintain a relatively uniform distribution of the various components of the ready-mixed concrete during transportation. The feeding device includes a feed hopper 72 and a feed pipe 73. The feed hopper 72 is generally funnel-shaped, and its lower end is connected to the feed pipe 73. The feed pipe 73 is an inclined straight pipe that communicates with the space inside the tank body 71 where the ready-mixed concrete is contained. The feeding direction of the feed hopper 72 is arranged intersecting the axial direction of the feed pipe 73. The second mounting surface 12 of the outer casing 1 is fixed to the outer periphery of the feed hopper 72 by a fixing bracket. The outer casing 1 is located on the side of the feed hopper 72 closer to the tank body 71, and the outer casing 1 passes through the feed pipe 73, so that the opening 111 can communicate with the feed pipe 73. This allows the acquisition component 4 to acquire images of the pre-mixed concrete inside the tank body 71 through the opening 111, thereby monitoring the state of the pre-mixed concrete. In addition, the feed hopper 72 and the feed pipe 73 do not rotate with the tank body 71, so that the image acquisition device 100 of this application can monitor the state of the pre-mixed concrete inside the tank body 71 from a relatively fixed position.

[0033] In this embodiment, the driving member 3 abuts against the first transmission member 21 and the second transmission member 22 on opposite sides along the first direction, so that when the driving member 3 rotates, the first transmission member 21 and the second transmission member 22 can move in opposite directions along the second direction. Based on this, when the acquisition component 4 changes from the working state to the standby state, the first transmission member 21 can move towards the opening 111 along the second direction to close the opening 111, and the second transmission member 22 can drive the acquisition component 4 away from the opening 111 along the second direction, so that the acquisition component 4 can be in the standby state not only when the opening 111 is closed, but also when it is away from the opening 111. This provides the acquisition component 4 with double protection, reducing the possibility that the acquisition component 4 will be contaminated by the pre-mixed concrete in the standby state, thereby affecting the acquisition performance. Consequently, the acquisition component 4 can better monitor the state of the pre-mixed concrete in the tank 71 in the working state. When the acquisition component 4 changes from standby state to working state, the first transmission component 21 can move away from the opening 111 in the second direction to connect the opening 111 with the space inside the tank 71 where the premixed concrete is contained. The second transmission component 22 can drive the acquisition component 4 to move towards the opening 111 in the second direction so that the acquisition component 4 can acquire images of the premixed concrete inside the tank 71 through the opening 111 to monitor the status of the premixed concrete in real time.

[0034] In one embodiment, please refer to Figure 2(a) When the acquisition component 4 is in standby mode, its projection on the first mounting surface 11 does not coincide with the opening 111. That is, when the acquisition component 4 is in standby mode, it can be retracted relatively completely into the depth of the housing 1, and is not exposed in the opening 111 in the first direction, thus providing further dual protection for the acquisition component 4. Please refer to [link / reference]. Figure 2 (b) When the acquisition component 4 is in working state, the projection of the first transmission component 21 on the first mounting surface 11 is located within the first mounting surface 11, so that the first transmission component 21 can open the opening 111 more completely, thereby reducing the possibility of the first transmission component 21 blocking the acquisition component 4, and enabling the acquisition component 4 to acquire images more smoothly in working state.

[0035] In one embodiment, the dimension of the first transmission member 21 in the third direction is greater than or equal to the dimension of the collection component 4 in the third direction. This allows the first transmission member 21 to effectively block splashes of ready-mixed concrete from the collection component 4 when it is in standby mode, thereby reducing the possibility of the collection component 4 being contaminated by the ready-mixed concrete. For example, the width of the first transmission member 21 is greater than the width of the collection component 4. The third direction, the second direction, and the first direction are arranged in pairs, intersecting each other. For example, the third direction could be... Figure 1 or Figure 2 The direction perpendicular to the paper surface, the third direction, the second direction, and the first direction can be arranged perpendicularly to each other.

[0036] In one embodiment, please refer to Figure 1 and Figure 2 The first transmission member 21 has a first transmission tooth 211 on the side near the second transmission member 22, and the first transmission tooth 211 can be a spur tooth. The second transmission member 22 has a second transmission tooth 221 on the side near the first transmission member 21, and the second transmission tooth 221 can also be a spur tooth. The driving member 3 is a driving gear, which meshes with the first transmission tooth 211 and the second transmission tooth 221 respectively, so that the driving gear can drive the first transmission member 21 and the second transmission member 22 to move in opposite directions along a second direction. Through the meshing of the driving gear with the first transmission tooth 211 and the second transmission tooth 221, the driving member 3 drives the first transmission member 21 and the second transmission member 22 to move in a more reliable manner and with higher transmission accuracy. The image acquisition device 100 also includes a drive motor, the output shaft of which is connected to the drive gear to drive the drive gear to rotate.

[0037] For example, please refer to Figure 1The length of the first transmission component 21 can be 10cm, and the total length of the second transmission component 22 and the acquisition component 4 in the second direction is 10cm. The first transmission component 21 has a first transmission tooth 211 in the upper 5cm range, and the first transmission tooth 211 can be omitted in the lower 5cm range of the first transmission component 21 to reduce the production cost of the first transmission component 21.

[0038] For example, please refer to Figure 1 The image acquisition device 100 may also include a control component 6, which includes an industrial computer and a power supply. The power supply can be a battery or an external power source to power the industrial computer and the drive motor. The industrial computer is electrically connected to the acquisition component 4 and the drive motor respectively, and can control the operation and stop of the acquisition component 4 and the drive motor according to the status of the concrete mixer truck 7, so that the acquisition component 4 and the drive motor can work together.

[0039] For example, please refer to Figure 1 and Figure 2 During the loading of ready-mixed concrete into concrete mixer truck 7, the industrial control computer can start the drive motor to activate the data acquisition component 4 and enter standby mode. During the transportation of ready-mixed concrete into concrete by concrete mixer truck 7, the industrial control computer can start the drive motor to activate the data acquisition component 4 and enter working mode. During the unloading of ready-mixed concrete from concrete mixer truck 7, the industrial control computer can start the drive motor to activate the data acquisition component 4 and enter standby mode.

[0040] In one embodiment, please refer to Figure 1 and Figure 2 The image acquisition device 100 also includes a first guide rail 51 and a second guide rail 52. The first guide rail 51 is disposed between the first transmission member 21 and the first mounting surface 11, so that the first transmission member 21 can move relative to the first mounting surface 11 in a second direction. For example, the image acquisition device 100 also includes a first slider and a second slider. The first guide rail 51 is fixedly connected to the first mounting surface 11, the first slider is fixedly connected to the first transmission member 21, and the first slider is slidably connected to the first guide rail 51, so that the first transmission member 21 can slide relative to the first guide rail 51 in a second direction via the first slider, thereby improving the accuracy of the first transmission member 21 moving in the second direction. The second guide rail 52 is disposed between the second transmission member 22 and the second mounting surface 12, so that the second transmission member 22 can move relative to the second mounting surface 12 in a second direction. For example, the second guide rail 52 is fixedly connected to the second mounting surface 12, the second slider is fixedly connected to the second transmission member 22, and the second slider is slidably connected to the second guide rail 52, so that the second transmission member 22 can slide relative to the second guide rail 52 in the second direction through the second slider, thereby improving the accuracy of the movement of the second transmission member 22 in the second direction.

[0041] The image acquisition device 100 of this application embodiment is a non-contact, multi-dimensional, all-time ready-mixed concrete rheological performance testing device. It can become a key technical path to break through the bottleneck of quality control of ready-mixed concrete in the transportation process. It can solve the problems of limited installation position, difficult protection, and harsh service environment of the image acquisition device 100 in the concrete mixer truck 7. It realizes the real-time acquisition of the state of ready-mixed concrete in the tank 71. At the same time, the acquisition component 4 is protected by the outer shell 1 and the first transmission component 21, which enables the image acquisition device 100 to serve for a long period of time.

[0042] The outer casing 1 can be less than or equal to 10cm in the first direction. The outer casing 1 is adapted to almost all narrow spaces between the tank 71 and the feed hopper 72 through a relatively compact transmission mechanism, and has strong installation compatibility.

[0043] The positional relationship between the driving component 3, the first transmission component 21, and the second transmission component 22 enables the first transmission component 21 and the collection component 4 to rise and fall synchronously. When the collection component 4 is in standby mode, the first transmission component 21 can close the opening 111 to reduce the possibility of premixed concrete or rainwater splashing and contaminating the collection component 4. When the collection component 4 is in working mode, the first transmission component 21 can move away from the opening 111 in the second direction to reduce the possibility of the first transmission component 21 blocking the collection component 4.

[0044] The control component 6 can automatically start and stop the drive motor based on the signal from the concrete mixer truck 7 loading, unloading or transporting ready-mixed concrete, so as to conveniently realize real-time monitoring of ready-mixed concrete.

[0045] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An image acquisition device, characterized in that, include: The housing includes a first mounting surface and a second mounting surface arranged opposite to each other along a first direction, the first mounting surface having an opening; A transmission assembly is disposed within the housing. The transmission assembly includes a first transmission component and a second transmission component. The first transmission component is slidably connected to the first mounting surface, and the second transmission component is slidably connected to the second mounting surface. A driving member is disposed within the housing. The driving member abuts against the first transmission member and the second transmission member on opposite sides along the first direction, so that when the driving member rotates, the first transmission member and the second transmission member can move in opposite directions along the second direction, which is arranged to intersect with the first direction. A data acquisition component is disposed inside the housing. The data acquisition component is connected to the second transmission component. The data acquisition component has a standby state and a working state. When the acquisition component is in the standby state, the first transmission member can cover the opening; when the acquisition component is in the working state, the acquisition component can acquire images through the opening.

2. The image acquisition device according to claim 1, characterized in that, When the acquisition component is in the standby state, the projection of the acquisition component on the first mounting surface does not coincide with the opening. When the acquisition component is in the working state, the projection of the first transmission component on the first mounting surface is located within the first mounting surface.

3. The image acquisition device according to claim 1, characterized in that, The dimension of the first transmission component in the third direction is greater than or equal to the dimension of the acquisition component in the third direction, and the third direction, the second direction, and the first direction are arranged in pairs.

4. The image acquisition device according to claim 1, characterized in that, The first transmission member has a first transmission tooth on the side near the second transmission member, and the second transmission member has a second transmission tooth on the side near the first transmission member. The driving member is a driving gear, which meshes with the first transmission tooth and the second transmission tooth respectively, so that the driving tooth can drive the first transmission member and the second transmission member to move in opposite directions along a second direction. The image acquisition device also includes a driving motor, the output shaft of which is connected to the driving gear to drive the driving gear to rotate.

5. The image acquisition device according to claim 1, characterized in that, The image acquisition device further includes a first guide rail and a second guide rail. The first guide rail is disposed between the first transmission member and the first mounting surface so that the first transmission member can move relative to the first mounting surface in the second direction. The second guide rail is disposed between the second transmission member and the second mounting surface so that the second transmission member can move relative to the second mounting surface in the second direction.

Images