The utility model content
In order to overcome above-mentioned defective of the prior art, the purpose of this utility model provides the unit that a kind of control radiation source that can significantly improve the vehicle percent of pass sends beam automatically, and the control radiation source sends the check system of beam automatically.
Control unit of the present utility model and check system can be controlled radiation source automatically and send beam, so that carry out scanning, automated imaging, inspection.Inspection to vehicle in the vehicle traveling process is carried out automatically, does not need the driver to stop to touch the button to start radiation source and sends beam, and then start vehicle and scan, and can shorten the review time greatly, thereby improve vehicle percent of pass and inspection rate.
In order to realize above-mentioned utility model purpose, according to an aspect of the present utility model, a kind of control unit that is used for radiation source is proposed, wherein said radiation source is used to send ray so that to carrying out radiation monitoring by the moving target of checking passage, described control unit comprises: first detector, described first detector on the direction that moving target advances, be arranged on described radiation source the downstream and with described radiation source at a distance of preset distance, so that detect by checking the moving target of passage; Controller, described controller is from the first detector received signal and control described radiation source and send ray automatically when described first detector detects described moving target.
Preferably, described control unit further comprises second detector, described second detector is arranged in the ground of checking passage and is positioned at the upstream side of first detector on the direction that moving target advances, wherein only when described first detector and second detector all detect moving target, described controller control radiation source sends ray automatically.
Alternatively, described control unit further comprises the 3rd detector, described the 3rd detector is arranged on the upstream side of described second detector on the direction that moving target advances, wherein only when the 3rd detector, described first detector and described second detector sequentially all detect moving target, described controller control radiation source sends ray automatically.
In addition, described control unit further comprises the 4th detector, described the 4th detector is arranged on the upstream side of described the 3rd detector on the direction that moving target advances, wherein only when the 4th detector, the 3rd detector, described first detector and described second detector sequentially all detect moving target, described controller control radiation source sends ray automatically.
According to second aspect of the present utility model, a kind of radiation checking system is proposed, comprising: check passage, checked moving target can be by described inspection passage; Radiation source, described radiation source are arranged on described inspection passage one side and are used to send ray; Detector array, described detector array are arranged on the opposite side of described inspection passage and relative with described radiation source, are used for the ray that sends from radiation source; First detector, described first detector on the direction that moving target advances, be arranged on described radiation source the downstream and with radiation source at a distance of preset distance, for use in detecting moving target; And controller, described controller is from the first detector received signal, and the control radiation source sends ray when described first detector detects described moving target, so that moving target is carried out radiant image and inspection.
According to the utility model, can bring up to per hour greater than 200 container trucks being examined the vehicle percent of pass.Compare with prior art, the utility model can improve the vehicle inspection rate greatly, and safe, the efficient height, thereby as all kinds of highway bayonet socket occasions.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish label is represented components identical.Below by embodiment is described with reference to the drawings so that explain the utility model.
Fig. 1 and 2 shows schematic side view and the schematic top plan view of sending the control unit 100 of beam according to the control radiation source 7a of the utility model embodiment automatically respectively, wherein said radiation source 7a is used to send ray so that to carrying out radiation monitoring by the moving target 1 of checking passage T, moving target 1 for example can be the vehicle that is examined that container is housed, and checks that passage T is by parallel and first protecting wall 6 and second protecting wall 9 spaced apart preset distance constitute substantially.
As shown in Figure 2, radiation source 7a is contained in the radiation source housing 7 and is arranged on the side of passage T, opposite side at passage T is provided with the detector arm 10 relative with radiation source 7a, detector arm 10 is provided with the detector array 10a that is used to receive the ray that sends from radiation source 7a, will describe in more detail below.
Control unit 100 comprises the optoelectronic switch 5 as first detector, and optoelectronic switch 5 is used to detect by checking being examined vehicle 1 and for example can being arranged on and checking in the passage T of passage T.For persons of ordinary skill in the art may appreciate that first detector is not limited to optoelectronic switch 5, for example can be any right sensors in this area.
Control unit 100 also comprises controller 8, controller 8 is used for detecting when being examined vehicle 1 from optoelectronic switch 5 received signals and at optoelectronic switch 5, send to controller 8 and to detect the signal (acknowledge signal) that is examined vehicle 1, thereby the described radiation source 7a of controller 8 controls sends ray automatically, so that carry out radiation monitoring to being examined vehicle 1, otherwise, optoelectronic switch 5 sends to controller 8 and does not detect the signal (negative acknowledge character (NAK)) that is examined vehicle 1, thereby controller 8 can not controlled radiation source 7a and sends ray automatically.
More specifically, optoelectronic switch 5 (direction left among Fig. 1 and Fig. 2) on being examined the direction that vehicle 1 advances be arranged on radiation source 7a the downstream and with beam stream interface P1 at a distance of preset distance L1, the driver's cabin that described preset distance L1 is set to be examined vehicle 1 is by beam stream interface P1 and be examined the upstream side (right side of Fig. 1 and Fig. 2) that container on the vehicle 1 still is arranged in beam stream interface P1, thereby before driver's cabin passes through beam stream interface P1, optoelectronic switch 5 can not detect and be examined vehicle 1, thereby can not send acknowledge signal to controller 8, but send negative acknowledge character (NAK) to controller 8, controller 8 can not controlled radiation source 7a yet and send ray automatically thus, so that guarantee driver's safety.
Preferably, optoelectronic switch 5 is arranged on the protecting wall 6 of checking passage T and/or the protecting wall 9 and apart from ground predetermined altitude H1, therefore, optoelectronic switch 5 only can detect by checking the moving target greater than predetermined altitude H1 of passage T.For example, owing to be examined the height of vehicle 1 greater than predetermined altitude H1, therefore, when being examined vehicle 1 by inspection passage T, optoelectronic switch 5 can detect it, thereby sends acknowledge signal for controller 8, and controller 8 control radiation source 7a send ray automatically thus.If height less than the people of predetermined altitude H1 or other dillies when checking passage T, because optoelectronic switch 5 can't detect it, therefore, optoelectronic switch 5 sends negative acknowledge character (NAK) to controller 8, controller 8 can not controlled radiation source 7a yet and send ray automatically thus, thereby has guaranteed fail safe and misoperation.
Preferably, control unit 100 further comprises the ground induction coil 4 as second detector, and ground induction coil 4 is located in the ground of checking passage T, and between the beam stream interface P1 of optoelectronic switch 5 and radiation source 7a.For persons of ordinary skill in the art may appreciate that second detector is not limited to ground induction coil 4, for example can be any right sensors in this area.
When be examined vehicle 1 from the entrance side (right side Fig. 1 and Fig. 2) of checking passage T to outlet side (left side among Fig. 1 and Fig. 2) when travelling, being examined vehicle 1 is at first detected by ground induction coil 4, the driver's cabin that is examined vehicle 1 front portion is then detected by optoelectronic switch 5, when the driver's cabin that is examined vehicle 1 front portion was detected by optoelectronic switch 5, the rear portion that is examined vehicle 1 was not also by beam stream interface P1.Local sense coil 4 and optoelectronic switch 5 sequentially all detect when being examined vehicle 1, and they sequentially send acknowledge signal to controller 8, thereby controller 8 control radiation source 7a send beam automatically, thereby carry out radiation scanning to being examined vehicle 1.
Need to prove, characteristic according to ground induction coil 4, when only the contact area of moving target that is moving in checking passage T and ground induction coil 4 acquires a certain degree, ground induction coil 4 just sends the signal (acknowledge signal) that detects moving target to controller 8, can further guarantee driver and operating personnel's safety like this.For example, when people or other dillies when checking passage T, even they are by ground induction coil 4, because they are little with the area that ground induction coil 4 contacts, ground induction coil 4 can not send acknowledge signal to controller 8, but send negative acknowledge character (NAK) to controller 8, even thereby optoelectronic switch 5 can detect and is examined vehicle 1, controller 8 can not controlled radiation source 7a yet and send ray automatically, thereby avoided the faulty operation of radiation source 7a, and then guaranteed that only radiation scanning has improved fail safe by checking the predetermined moving target of passage T.
According to the further preferred embodiment of the utility model, control unit 100 further comprises the light curtain switch 3 as the 3rd detector, and light curtain switch 3 is arranged on to be checked in the passage T and between ground induction coil 4 and beam stream interface P1.For persons of ordinary skill in the art may appreciate that the 3rd detector is not limited to light curtain switch 3, for example can be any right sensors in this area.
Light curtain switch 3 not only can detect the existence of moving target, can also be by concrete moving target be discerned in the moving target imaging, for example be examined the model of vehicle 1 etc., thereby send acknowledge signal, so that controller 8 control radiation source 7a send ray automatically to controller 8.
Particularly, only be examined vehicle 1, thereby they sequentially send acknowledge signal to controller 8, so that controller 8 control radiation source 7a send ray automatically when light curtain switch 3, ground induction coil 4 and optoelectronic switch 5 sequentially all detect.If any in light curtain switch 3, ground induction coil 4 and the optoelectronic switch 5 do not sent acknowledge signal to controller 8, controller 8 can not controlled radiation source 7a and send ray automatically so, thereby improved fail safe, avoided the misoperation of radiation source 7a reliably.
According to the utility model preferred embodiment further, control unit 100 further comprises the light curtain switch 2 as the 4th detector, light curtain switch 2 is positioned at the upstream side of beam stream interface P1 on the direction that moving target advances, more specifically, light curtain switch 2 and light curtain switch 3 are separately positioned on both sides and the close beam stream interface P1 of beam stream interface P1, as 1 and shown in Figure 2.For persons of ordinary skill in the art may appreciate that the 4th detector is not limited to light curtain switch 2, for example can be any right sensors in this area.
The effect of light curtain switch 2 is identical substantially with the effect of light curtain switch 3, therefore omits its detailed description.Need to prove that the purpose that light curtain switch 2 is set is in order further to improve fail safe and to avoid the misoperation of radiation source 7a.
In other words, only work as light curtain switch 2, light curtain switch 3, ground induction coil 4 and optoelectronic switch 5 and sequentially all detect detected vehicle 1, when they all sequentially send acknowledge signal with controller 8, controller 8 is just controlled radiation source 7a and is sent ray automatically, if any in light curtain switch 2, light curtain switch 3, ground induction coil 4 and the optoelectronic switch 5 do not sent acknowledge signal to controller 8, controller 8 can not controlled radiation source 7a and send ray automatically so, thereby further improved fail safe, avoided the misoperation of radiation source 7a reliably.
Utilization is described according to the method for control unit 100 control radiation source 7a that is used to control radiation source with above-mentioned structure of the present utility model below with reference to Fig. 3, Fig. 3 is the flow chart of control radiation source 7a, wherein control unit 100 is provided with the light curtain switch 2 as first to fourth detector, light curtain switch 3, ground induction coil 4 and optoelectronic switch 5.
Be examined vehicle 1 and enter inspection passage T, and advance to the outlet side (left side among Fig. 1 and Fig. 2) of checking passage T from the entrance side (right side Fig. 1 and Fig. 2) of checking passage T.
At first, when being examined vehicle 1 and advancing to position 1A, 2 pairs on light curtain switch is examined vehicle 1 and detects (step S1), is examined vehicle 1 if light curtain switch 2 detects, and then sends acknowledge signal to controller 8.Do not meet preassigned if detect to be examined vehicle 1 or to be examined vehicle 1, then light curtain switch 2 sends negative acknowledge character (NAK) to controller 8, checks and finishes.
Next, be examined vehicle 1 and continue to pass through to overtake beam stream interface P1,3 pairs on light curtain switch is examined vehicle 1 and detects (step S2), is examined vehicle 1 if light curtain switch 3 detects, and then sends acknowledge signal to controller 8.Do not meet preassigned if detect to be examined vehicle 1 or to be examined vehicle 1, then light curtain switch 3 sends negative acknowledge character (NAK) to controller 8.
Continue to overtake when being examined vehicle 1, then being examined vehicle 1 is pressed on the ground induction coil 4, ground induction coil 4 will detect (step S3) to being examined vehicle 1, be examined vehicle if ground induction coil 4 detects, and then ground induction coil 4 sends acknowledge signal to controller 8.Otherwise ground induction coil 4 sends negative acknowledge character (NAK) to controller 8, checks and finishes.
Next, when being examined vehicle 1 to overtake to position 1B, the driver's cabin that be examined vehicle 1 front portion this moment reaches preset distance L1 apart from the distance of beam stream interface P1, and 5 pairs of optoelectronic switches are examined vehicle 1 and detect (step S4).Need to prove that as mentioned above, when the driver's cabin that is examined vehicle 1 front portion reaches preset distance L1 apart from the distance of beam stream interface P1, be examined the rear portion of vehicle 1, the part that detected goods promptly is housed is still by beam stream interface P1.Be not less than predetermined altitude H1 if be examined the height of vehicle 1, then optoelectronic switch 5 detects and is examined vehicle 1, and optoelectronic switch 5 sends acknowledge signal to controller 8 thus, otherwise sends negative acknowledge character (NAK) to controller 8, checks and finishes.
If light curtain switch 2, light curtain switch 3, ground induction coil 4 and optoelectronic switch 5 sequentially all send acknowledge signal to controller 8, then controller 8 sends control signal to radiation source 7a, radiation source 7a sends beam (step S5) automatically thus, thereby scan imaging and inspection to being examined vehicle 1.
Need to prove, in the utility model, light curtain switch 2, light curtain switch 3, ground induction coil 4 and optoelectronic switch 5 detect and are examined vehicle 1 and comprise following implication: the first, and light curtain switch 2, light curtain switch 3, ground induction coil 4 and optoelectronic switch 5 detect the existence that is examined vehicle 1; Light curtain switch 2, light curtain switch 3, ground induction coil 4 and optoelectronic switch 5 detect and are examined vehicle 1 and meet predetermined condition, for example have only light curtain switch 2 and the light curtain switch 3 detected vehicles 1 that are examined to meet with the vehicle model of being scheduled to, light curtain switch 2 and light curtain switch 3 just can send acknowledge signal to controller 8, for another example, when ground induction coil 4 only detects 1 area that is in contact with it that checks vehicles that contacts with its (directly or indirectly) and conforms to a predetermined condition, just can send acknowledge signal to controller 8.
Need to prove that in above-mentioned specific embodiment, control unit 100 is provided with light curtain switch 2, light curtain switch 3, ground induction coil 4 and the optoelectronic switch 5 as first to fourth detector, this only is the preferred mode of the utility model.Alternatively, control unit 100 can only be provided with optoelectronic switch 5, or ground induction coil 4 and optoelectronic switch 5 only are set, or light curtain switch 3, ground induction coil 4 and optoelectronic switch 5 only be set, in above-mentioned any scheme, utilize the principle of controller 8 control radiation source 7a the same substantially, therefore, only describe control unit 100 above in detail and be provided with light curtain switch 2, light curtain switch 3, the situation of ground induction coil 4 and optoelectronic switch 5, the detailed description of other situations is omitted.
Radiation checking system and the radiation testing method that comprises above-mentioned control unit 100 described below simply.
Radiation checking system according to the utility model embodiment comprises above-mentioned control unit 100, and checked moving target is by its inspection passage T; Be arranged on the side of described inspection passage T and be used to send the radiation source 7a of ray, in addition, radiation checking system also comprises detector array 10a, described detector array 10a is arranged on the opposite side of described inspection passage T and relative with described radiation source 7a, is used to receive the ray that sends from radiation source 7a.Preferably, detector array 10a is arranged on the detector arm 10.
As mentioned above, when as light curtain switch 2, light curtain switch 3, ground induction coil 4 and the optoelectronic switch 5 of first to fourth detector all when controller 8 sends acknowledge signal, controller 8 control radiation source 7a send beam automatically, the detector array 10a that the ray that sends from radiation source 7a is positioned on the detector arm 10 of passage T opposite side receives, thereby to scan imaging and inspection as the goods on the detected vehicle 1 of moving target.As for the device that in the radiation checking system goods is carried out imaging can use with prior art in the same imaging device, be not described in detail here.
As example, the control unit 100 in the above-mentioned radiation checking system is provided with light curtain switch 2, light curtain switch 3, ground induction coil 4 and the optoelectronic switch 5 as first to fourth detector.Yet as mentioned above, this only is an optimal way of the present utility model, and unrestricted the utility model.
Thus, according to the utility model, owing to be provided with the detector that moving target is checked, and by utilizing detector that moving target is detected, if detector has detected moving target or detected moving target meets predetermined condition, then detector sends acknowledge signal to controller, thereby controller control radiation source sends ray automatically moving target is carried out radiation monitoring, thereby avoided manually starting the needs of radiation source, saved the time, improved checking efficiency.And owing to the detection signal by detector, controller control radiation source sends ray automatically, so fail safe further improves.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can change that scope of the present utility model is limited by claims and equivalent thereof to these embodiment.