阅读说明：本技术 间距现场检测平台 (Interval field detection platform ) 是由 杨洋 于 2020-12-04 设计创作，主要内容包括：本发明涉及一种间距现场检测平台,包括：雪橇主结构,包括左侧滑板、右侧滑板、横梁和托架,所述横梁水平布置在所述左侧滑板的板尖和所述右侧滑板的板尖之间,所述托架位于所述左侧滑板和所述右侧滑板之间,用于负载人员和物件；内容判断设备,用于在接收到的椒盐处理图像中存在实体间距小于等于预设距离阈值的两个景深相近的树体目标时,发出前行受阻信号,否则,发出前行畅通信号。本发明的间距现场检测平台运行稳定、操控可靠。由于能够在雪橇行驶过程中,对前方是否存在间距过小的两棵树进行在线辨识和异常通知,从而方便雪橇驾驶人员及时变道以减少雪橇被卡在树林之间的概率。(The invention relates to a space field detection platform, comprising: the sled main structure comprises a left side sliding plate, a right side sliding plate, a cross beam and a bracket, wherein the cross beam is horizontally arranged between the plate tip of the left side sliding plate and the plate tip of the right side sliding plate, and the bracket is positioned between the left side sliding plate and the right side sliding plate and is used for loading people and objects; and the content judgment equipment is used for sending a forward movement blocking signal when two tree objects with similar depth of field and with an entity distance smaller than or equal to a preset distance threshold exist in the received salt and pepper processing image, and otherwise, sending a forward movement unblocked signal. The space field detection platform provided by the invention has the advantages of stable operation and reliable control. Because can be at sled driving in-process, whether there are two trees that the interval is too little to the place ahead to discern on line and inform unusually to make things convenient for sled navigating mate in time to change the lane in order to reduce the probability that sled was blocked between the woods.)

1. A space field testing platform, said platform comprising:

the sled main structure comprises a left side sliding plate, a right side sliding plate, a cross beam and a bracket, wherein the cross beam is horizontally arranged between the plate tip of the left side sliding plate and the plate tip of the right side sliding plate;

wherein the bracket is located between the left side slide plate and the right side slide plate for loading people and objects.

2. The space field testing platform of claim 1, wherein said platform further comprises:

and the directional snapshot equipment is arranged in the central position of the cross beam and used for performing instant snapshot processing on the front of the sled main structure so as to obtain an image in front of the sled.

3. The space field testing platform of claim 2, wherein said platform further comprises:

the salt and pepper processing mechanism is connected with the directional snapshot equipment and is used for filtering salt and pepper noise of the image in front of the sled in a median filtering mode to obtain a corresponding salt and pepper processed image;

the tree body identification device is connected with the salt and pepper processing mechanism and used for identifying the area where each tree body target is located from the salt and pepper processing image based on each appearance pattern corresponding to each tree body;

the first analyzing mechanism is connected with the tree body recognition equipment and is used for analyzing the depth of field of each tree body target in the salt and pepper processed image;

the second analysis mechanism is connected with the first analysis mechanism and used for acquiring every two tree objects with similar depth of field in the salt and pepper processing image and executing the following actions on every two tree objects with similar depth of field: taking the mean value of two depth of fields corresponding to the two tree body targets as a reference depth of field, taking the least number of pixel points of the two tree body targets separated in the salt and pepper processing image as a reference number, and estimating the entity distance between the two tree body targets with similar depth of field based on the reference depth of field and the reference data;

the content judgment device is connected with the second analysis mechanism and used for sending a forward movement blocking signal when two tree objects with similar depth of field and with an entity distance smaller than or equal to a preset distance threshold exist in the salt and pepper processing image;

the content judgment equipment is further used for sending a clear signal of advancing when two tree objects with similar depth of field and with an entity distance smaller than or equal to a preset distance threshold do not exist in the salt and pepper processing image;

in the content determination device, the preset distance threshold is the width of the widest position of the ski main structure in the horizontal direction;

the analyzing of the depth of field of each tree object in the salt and pepper processed image comprises: determining the depth of field of each tree body target in the salt and pepper processing image based on the depth of field of each pixel point occupied by each tree body target in the salt and pepper processing image;

determining the depth of field of each tree object in the salt and pepper processing image based on the depth of field of each pixel point occupied by each tree object in the salt and pepper processing image comprises the following steps: and taking the average value of each depth of field of each pixel point occupied by each tree object in the salt and pepper processing image as the depth of field of the tree object in the salt and pepper processing image.

4. The space field inspection platform of claim 3, wherein:

identifying the area where each tree object is located from the salt and pepper processing image based on the outline patterns corresponding to the various trees respectively comprises the following steps: and taking the region with the similarity of the outline pattern corresponding to a certain tree in the salt and pepper processed image exceeding the limit as the region where the tree object is located.

5. The space field testing platform of claim 4, wherein said platform further comprises:

and the big data server is connected with the tree body identification equipment and is used for storing each appearance pattern corresponding to each tree body.

6. The space field inspection platform of claim 5, wherein:

the first analysis mechanism, the second analysis mechanism and the content judgment device are realized by the same CPLD chip;

and the first analysis mechanism, the second analysis mechanism and the content judgment device are respectively realized by adopting logic control parts at different positions in the CPLD chip.

7. The space field testing platform of claim 6, wherein said platform further comprises:

and the NFC configuration interface is connected with the first analysis mechanism and is used for configuring various operating parameters for the first analysis mechanism based on an NFC communication link.

8. The space field inspection platform of claim 7, wherein:

the NFC configuration interface is further connected with the second analysis mechanism and used for configuring various operating parameters for the second analysis mechanism based on an NFC communication link.

9. The space field inspection platform of claim 8, wherein:

the NFC configuration interface is also connected with the content judgment equipment and is used for configuring various operation parameters for the content judgment equipment based on an NFC communication link;

in the NFC configuration interface, the first parsing mechanism, the second parsing mechanism, and the content determination device have different configuration numbers, and are configured to distinguish the first parsing mechanism, the second parsing mechanism, and the content determination device when the NFC configuration interface performs operation parameter configuration.

10. A method of field testing the separation, the method comprising providing a field testing platform according to any one of claims 1 to 9 for field identification and anomaly notification of two tree objects with closely spaced depths of field in front of a ski.

Technical Field

The invention relates to the field of sled control, in particular to a space field detection platform.

Background

Sledges are a snow sports apparatus, originated in swiss, popular in europe, north america and asia. Originally made of wood, and later made of metal. The first ski show was held in the uk in 1884. Sledges, snow sports equipment. Made of wood or metal. The device has various types, such as no rudder, single pry, wide pry, riding type, horizontal type, connecting die, traction type, electric type, sail type and the like.

The rudderless sled is made of wood, and the bottom sliding plate is made of metal. A pair of parallel slides is no wider than 45 cm. The skateboard front fin allows some flexibility to be maintained, but does not have to be equipped with rudders and brakes to operate the skateboard. The weight of a single seat is not more than 20kg, and the weight of a double seat is not more than 22 kg. The skis with rudder are made of metal, the front part is a pair of movable rudder plates, and the upper part is connected with a steering wheel. And is provided with a fixed streamlined cover. The lower part of the tail is provided with a brake. The double sledge is 270cm long and 67cm wide, and the weight of the double sledge does not exceed 375 kg. The four skis are 380cm long and 67cm wide, and the weight of the included person is not more than 630 kg. If the weight is insufficient, the weight can be carried with other weights to complement.

The indigenous nationality of the northern region of Eschomson generally raised dogs to pull the skis. Sledges, snow sports equipment. Made of wood or metal. The device has various types, such as no rudder, single pry, wide pry, riding type, horizontal type, connecting die, traction type, electric type, sail type and the like. The rudderless sled is made of wood, and the bottom sliding plate is made of metal. A pair of parallel slides is no wider than 45 cm. The skateboard front fin allows some flexibility to be maintained, but does not have to be equipped with rudders and brakes to operate the skateboard. The weight of a single seat is not more than 20kg, and the weight of a double seat is not more than 22 kg. The skis with rudder are made of metal, the front part is a pair of movable rudder plates, and the upper part is connected with a steering wheel. And is provided with a fixed streamlined cover. The lower part of the tail is provided with a brake. The double sledge is 270cm long and 67cm wide, and the weight of the double sledge does not exceed 375 kg. The four skis are 380cm long and 67cm wide, and the weight of the included person is not more than 630 kg. If the weight is insufficient, the weight can be carried with other weights to complement. The indigenous nationality of the northern region of Eschomson generally raised dogs to pull the skis.

At present, in the process of driving the sled to run on the snowfield, whether in a plain environment or a mountain environment, forests or forests are likely to appear on a passing path in a staggered mode, and the spacing between the forests becomes a key factor for judging whether the sled can pass continuously or not. Under the condition of less accumulated snow, a plurality of reference objects exist for a driver to judge that the driver can effectively pass between the forests or the forests, and under the condition of more accumulated snow, particularly during the running process at a higher speed, the manual judgment of the forest spacing with high precision is difficult to carry out, so that the driver is always hesitant to continue to move ahead or change the route between two choices.

Disclosure of Invention

In order to solve the technical problems in the related field, the invention provides a distance field detection platform which can perform online identification and abnormal notification on whether two trees with too small distance exist in front or not in the sled driving process, so that a sled driver can conveniently change the way in time to reduce the probability that the sled is clamped between the trees.

Therefore, the invention needs to have the following two important points:

(1) when the distance between two trees in front of the sled is detected to be too small, triggering the sending of a forward movement blocking signal to reduce the probability that the sled is clamped between the trees;

(2) and (3) adopting visual parameters such as depth of field data based on the tree body target and the number of pixels at intervals to carry out field identification on whether two trees with too small distance exist in front of the sled.

According to an aspect of the present invention, there is provided a space field inspection platform, the platform comprising:

the sled main structure comprises a left side sliding plate, a right side sliding plate, a cross beam and a bracket, wherein the cross beam is horizontally arranged between the plate tip of the left side sliding plate and the plate tip of the right side sliding plate;

wherein the bracket is located between the left side slide plate and the right side slide plate for loading people and objects.

More specifically, in the field testing platform for gap according to the present invention, the platform further comprises:

and the directional snapshot equipment is arranged in the central position of the cross beam and used for performing instant snapshot processing on the front of the sled main structure so as to obtain an image in front of the sled.

More specifically, in the field testing platform for gap according to the present invention, the platform further comprises:

the salt and pepper processing mechanism is connected with the directional snapshot equipment and is used for filtering salt and pepper noise of the image in front of the sled in a median filtering mode to obtain a corresponding salt and pepper processed image;

the tree body identification device is connected with the salt and pepper processing mechanism and used for identifying the area where each tree body target is located from the salt and pepper processing image based on each appearance pattern corresponding to each tree body;

the first analyzing mechanism is connected with the tree body recognition equipment and is used for analyzing the depth of field of each tree body target in the salt and pepper processed image;

the second analysis mechanism is connected with the first analysis mechanism and used for acquiring every two tree objects with similar depth of field in the salt and pepper processing image and executing the following actions on every two tree objects with similar depth of field: taking the mean value of two depth of fields corresponding to the two tree body targets as a reference depth of field, taking the least number of pixel points of the two tree body targets separated in the salt and pepper processing image as a reference number, and estimating the entity distance between the two tree body targets with similar depth of field based on the reference depth of field and the reference data;

the content judgment device is connected with the second analysis mechanism and used for sending a forward movement blocking signal when two tree objects with similar depth of field and with an entity distance smaller than or equal to a preset distance threshold exist in the salt and pepper processing image;

the content judgment equipment is further used for sending a clear signal of advancing when two tree objects with similar depth of field and with an entity distance smaller than or equal to a preset distance threshold do not exist in the salt and pepper processing image;

in the content determination device, the preset distance threshold is a width of a widest part of the sled main structure in the horizontal direction.

According to another aspect of the invention, a distance field detection method is further provided, and the method comprises the step of using the distance field detection platform as described above for carrying out field identification and abnormity notification on whether two tree objects with undersized depth of field close to each other exist in front of the sledge.

The space field detection platform provided by the invention has the advantages of stable operation and reliable control. Because can be at sled driving in-process, whether there are two trees that the interval is too little to the place ahead to discern on line and inform unusually to make things convenient for sled navigating mate in time to change the lane in order to reduce the probability that sled was blocked between the woods.

Detailed Description

Embodiments of the field spaced test platform of the present invention will now be described in detail.

The machine vision detection is characterized by improving the flexibility and the automation degree of production. In some dangerous working environments which are not suitable for manual operation or occasions which are difficult for manual vision to meet the requirements, machine vision is commonly used to replace the manual vision; meanwhile, in the process of mass industrial production, the efficiency of checking the product quality by using manual vision is low, the precision is not high, and the production efficiency and the automation degree of production can be greatly improved by using a machine vision detection method. And the machine vision is easy to realize information integration, and is a basic technology for realizing computer integrated manufacturing.

Illumination is an important factor affecting machine vision system input, and it directly affects the quality and application effect of input data. Since there is no general machine vision lighting, the corresponding lighting device is selected for each specific application instance to achieve the best results. The light source can be divided into visible light and invisible light. Several visible light sources commonly used are incandescent, fluorescent, mercury and sodium lamps. The visible light has the disadvantage that the light energy does not remain stable. How to keep the light energy stable to a certain extent is a problem which needs to be solved urgently in the practical process. On the other hand, the ambient light may affect the image quality, so the shielding method can be used to reduce the effect of the ambient light. The lighting system can be divided into: back lighting, forward lighting, structured light, and stroboscopic lighting, among others. Among them, the back lighting is that the measured object is placed between the light source and the camera, which has the advantage of obtaining high contrast images. The forward illumination is such that the light source and the camera are located on the same side of the object to be measured, in a manner that facilitates installation. The structured light illumination is to project a grating or a line light source and the like onto a measured object, and demodulate three-dimensional information of the measured object according to distortion generated by the grating or the line light source and the like. The stroboscopic illumination is to irradiate high-frequency light pulses on an object, and the shooting of a camera is required to be synchronous with a light source.

At present, in the process of driving the sled to run on the snowfield, whether in a plain environment or a mountain environment, forests or forests are likely to appear on a passing path in a staggered mode, and the spacing between the forests becomes a key factor for judging whether the sled can pass continuously or not. Under the condition of less accumulated snow, a plurality of reference objects exist for a driver to judge that the driver can effectively pass between the forests or the forests, and under the condition of more accumulated snow, particularly during the running process at a higher speed, the manual judgment of the forest spacing with high precision is difficult to carry out, so that the driver is always hesitant to continue to move ahead or change the route between two choices.

In order to overcome the defects, the invention builds the space field detection platform and can effectively solve the corresponding technical problem.

The spacing field test platform shown according to the embodiment of the invention comprises:

the sled main structure comprises a left side sliding plate, a right side sliding plate, a cross beam and a bracket, wherein the cross beam is horizontally arranged between the plate tip of the left side sliding plate and the plate tip of the right side sliding plate, and the bracket is positioned between the left side sliding plate and the right side sliding plate and is used for loading people and objects;

the directional snapshot device is arranged in the center of the cross beam and used for performing instant snapshot processing on the front of the sled main structure so as to obtain an image in front of the sled;

the salt and pepper processing mechanism is connected with the directional snapshot equipment and is used for filtering salt and pepper noise of the image in front of the sled in a median filtering mode to obtain a corresponding salt and pepper processed image;

the tree body identification device is connected with the salt and pepper processing mechanism and used for identifying the area where each tree body target is located from the salt and pepper processing image based on each appearance pattern corresponding to each tree body;

the first analyzing mechanism is connected with the tree body recognition equipment and is used for analyzing the depth of field of each tree body target in the salt and pepper processed image;

the second analysis mechanism is connected with the first analysis mechanism and used for acquiring every two tree objects with similar depth of field in the salt and pepper processing image and executing the following actions on every two tree objects with similar depth of field: taking the mean value of two depth of fields corresponding to the two tree body targets as a reference depth of field, taking the least number of pixel points of the two tree body targets separated in the salt and pepper processing image as a reference number, and estimating the entity distance between the two tree body targets with similar depth of field based on the reference depth of field and the reference data;

the content judgment device is connected with the second analysis mechanism and used for sending a forward movement blocking signal when two tree objects with similar depth of field and with an entity distance smaller than or equal to a preset distance threshold exist in the salt and pepper processing image;

the content judgment equipment is further used for sending a clear signal of advancing when two tree objects with similar depth of field and with an entity distance smaller than or equal to a preset distance threshold do not exist in the salt and pepper processing image;

in the content determination device, the preset distance threshold is a width of a widest part of the sled main structure in the horizontal direction.

Next, the detailed structure of the pitch field test platform of the present invention will be further described.

Among the on-the-spot testing platform of interval:

analyzing the depth of field of each tree object in the salt and pepper processed image comprises: and determining the depth of field of each tree body target in the salt and pepper processing image based on the depth of field of each pixel point occupied by each tree body target in the salt and pepper processing image.

Among the on-the-spot testing platform of interval:

determining the depth of field of each tree object in the salt and pepper processing image based on the depth of field of each pixel point occupied by each tree object in the salt and pepper processing image comprises: and taking the average value of each depth of field of each pixel point occupied by each tree object in the salt and pepper processing image as the depth of field of the tree object in the salt and pepper processing image.

Among the on-the-spot testing platform of interval:

identifying the area where each tree object is located from the salt and pepper processing image based on the outline patterns corresponding to the various trees respectively comprises the following steps: and taking the region with the similarity of the outline pattern corresponding to a certain tree in the salt and pepper processed image exceeding the limit as the region where the tree object is located.

The space field detection platform can further comprise:

and the big data server is connected with the tree body identification equipment and is used for storing each appearance pattern corresponding to each tree body.

Among the on-the-spot testing platform of interval:

the first analysis mechanism, the second analysis mechanism and the content judgment device are realized by the same CPLD chip;

and the first analysis mechanism, the second analysis mechanism and the content judgment device are respectively realized by adopting logic control parts at different positions in the CPLD chip.

The space field detection platform can further comprise:

and the NFC configuration interface is connected with the first analysis mechanism and is used for configuring various operating parameters for the first analysis mechanism based on an NFC communication link.

Among the on-the-spot testing platform of interval:

the NFC configuration interface is further connected with the second analysis mechanism and used for configuring various operating parameters for the second analysis mechanism based on an NFC communication link.

Among the on-the-spot testing platform of interval:

the NFC configuration interface is also connected with the content judgment equipment and is used for configuring various operation parameters for the content judgment equipment based on an NFC communication link;

in the NFC configuration interface, the first parsing mechanism, the second parsing mechanism, and the content determination device have different configuration numbers, and are configured to distinguish the first parsing mechanism, the second parsing mechanism, and the content determination device when the NFC configuration interface performs operation parameter configuration.

Meanwhile, in order to overcome the defects, the invention also provides a distance field detection method, which comprises the step of using the distance field detection platform for carrying out field identification and abnormal notification on whether two tree objects with undersized depth of field and close depth of field exist in front of the sledge.

In addition, in the field detection platform of the distance, the chinese of NFC is all called near field communication technology. The NFC is developed by combining a wireless interconnection technology on the basis of a non-contact Radio Frequency Identification (RFID) technology, and provides a very safe and rapid communication mode for various electronic products which are more and more popular in daily life. The "near field" in the NFC chinese name refers to radio waves in the vicinity of an electromagnetic field. Since radio waves are actually electromagnetic waves, it follows maxwell's equations, and electric and magnetic fields alternately perform energy conversion all the time when propagating from a transmitting antenna to a receiving antenna and enhance each other when performing the conversion, for example, radio signals used by our mobile phone propagate by using this principle, which is called far-field communication. Within 10 wavelengths of electromagnetic waves, the electric field and the magnetic field are independent from each other, the electric field has little meaning, but the magnetic field can be used for short-distance communication, which is called near field communication. The near field communication service combines the near field communication technology and the mobile communication technology, realizes multiple functions of electronic payment, identity authentication, ticketing, data exchange, anti-counterfeiting, advertisement and the like, and is a novel service in the field of mobile communication. The near field communication service enhances the functions of the mobile phone, so that the consumption behavior of the user gradually becomes electronization, and a novel user consumption and service mode is established.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Although the present invention has been described with reference to the above embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be subject to the scope defined by the claims of the present application.